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Nw; 5„ 19%.
G. MUFFLY
Zœläßîä '
REFRIGERÀTOR
Filed oct. 3,1941
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Nov. 5, 1946.
G. MUFFLY
2,410,672
Rammmœon
Filed oct. :5, 1941
73
173 .
4 sheets-sheet s
Nov. 5„ 1946.'
2,410,672
G. MUFFLY
REFRIGEÈATOR
_
Filed Oct. 3. 1941
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Patented Nov. 5, 1946
U
riso Ystares PATENT.
2,410,672
REFRIGERATOR
Glenn Muñly, Springñeld, Ohio
Application October 3, 1941, Serial No. 413,495
14 Claims. '(Cl. S12-192)
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2
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,
5_5 of Figure 1 to illustrate the relationship of
This invention pertains to refrigeration an
particularly to mechanical refrigerators adapted
for household use.
One of the objects is to provide a self-'opening
and self-closing outer door.
the hinge rod to the door and to the cabinet and _Y
further to show sections of the molded door frame
and of the molded frame for' the door opening,
illustrating the change of section of these frames
on the hinge side of the door as compared with
the sections seen in Figures 2 and 3.
Figureö is a detail view of the freezer latch
Another object is to provide operating means for such a door, employing spring means which
acts at one time to open the door and at another
as seen from the line 6_6 of Figure l‘.
,
time to close the door.
Figure 7 is a fractional horizontal sectional
An additional object is to provide a door or 10
view of the freezer and its door, showing a. modi
cover for an inner receptacle of such a refriger
i'led form of latch.
.
ator which is self-closing as a result ofÀ closure
Figure 8 is an enlarged sectional view showing
of th'e outer door. a part of Figure 3 in greater detail.
f
An additional object is to provide a refriger
Figure 9 is a detail of Figure 3 showing the door
ator door with a latch which does not project for
spring mechanism with door partially open.
Figure 10 is similar to Figure 9, but showing
ward farther than the door itself, thus simpli
fying the packing of the refrigerator for ship
ment and eliminating the use of a projecting
handle or other part which might catch on a
the door fully opened.
person’s clothing.
the part of Figure 2 which includes the spring .
'
Still another object is to provide for location of
the door operating mechanism within the refrig
-
Figure 11 is an enlarged detail View showing
and latch means for the cover of the ice-maker
tank.
v
_
The cabinet l is fitted with a door 3 adapted
to open the full front of the vfood space. The
erating machinery compartment >of the refriger
ator.
The accompanying drawings illustrate only one 25 door is attached to the hinge rod t which is con
nected with a spring-actuated mechanism. for
design withoutgoing into modifications except
both opening and closing the door, as below de
that Figure 'l shows an alternative type of latch
for the freezer door. In these drawings similar
scribed.
_
To open the door the striker plate 9 is pushed
reference numbers are used for similar parts
y throughout, and all figures except Figure 7 are
inwardly toward the cabinet, the plate being
tied together by the broken lines which indicate
hinged atY 8 (Figures 3' and 8). This moves the
where sectional views are taken.
push rod i@ inwardly, -moving the latch lever il
-
Figure 1 is a front elevation of the refrigera
tor, showing the outer door broken away, the
freezer door removed and the ice-water tank re
moved for aclearer showing of internal parts.
Figure 2 is a sectional view» of Figure 1 taken
' in a counterclockwise direction together with the
shaft l2, as viewed`from above, thus Withdraw
ing the hinged latch end it from engagement
with the door, which is thereupon opened by the
door spring It; This spring is supported at one
on line 2-2 thereof, showing the ice-water tank ' end by the fixed member i8 and acts upon the
in position and illustrating the method employed ' lever 20, which is secured to the hinge rod i.
to reclose the cover of this tank. This view also 40 This hinge rod is in turn secured to thev outer
shows a section of the half mold used in forming
the door frame from plastic material.
- .
-
Figure 3 is a horizontal sectional view of Figure
1 taken mainly on the line 3--3 thereof and in
wall member of the door, being free to rotate in ‘
bearings 6 and 1. Since the spring I6 is under
' tension when the door is closed, it acts in an open
ing direction on the door while the lever 2t moves
cluding broken portions. This view shows the 45 through the angle a. _The inertia Vof the door
spring devices for actuating the outer door and
will thereupon stretch the spring i6 while 'the le
for reclosing the ice-water tank cover. It also
ver 20 and the door move through a slightly -lesser
_ angle, as seen in Fig. 9 and indicated at b in Fig.
shows details of the main door latch and its con
nection with the door closing mechanism.
3, bringing the Alever Q20 to the position 2li'. At
Figure 4 is a detail sectional view of Figure 1` 50 this point the pawl 22, which is -alsosecured
taken on the line ßl-t thereofto illustrate the
upon the rod i, has engaged the notch 23 ofthe
relationship between the hinge rod of the outer
ratchet quadrant> 26, thus" holding the door open
with the spring I6 partially extended.
door of the outer panel immediately below the
door.
`
A
Figure 5 isv a sectional view taken on the line
It will thus be seen that a user coming to the
refrigerator with both hands full can open the
agudezaY
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Y
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3
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door by merely touching the striker plate 3 with
her elbow. While the door does not open wide, it
' opens far enough to provide ordinary access to
,
i
4
_
in the support l. The hingerod 4 passes out
side of the- welded joint between the right-hand
outer sheet 3l of the cabinet and panel 38 below
the _food compartment and it may be pushed to
the door, as seen in Figure 4, but its lower endis
the 90° positionvof full opening (Fig. l0) without 5 concealed behind the unit compartment door 30.
using the hands. When the door is so pushed>
Panel 38-may be one piece with the sheet of metal '
' `the pawl 22 is moved into engagement with the
below the bottom insulation, as shownfto reduce
second notch 25 in the quadrant 24. The lever
the length of joints to be welded. The door 3l
20 is at the same time moved tothe dotted Dosi
may Ybe removed from the cabinet by removing
tion 20", further extending the spring I6.
'
10 the door 30, disconnecting the spring I6 and
A To close the door from this full-open position
lever 20, loosening the lower support 6 from the
it is only necessary to again depress the plate 9.
«cabinet opening the door and dropping it down
which causes the shaft I2 to move counterclock
to withdraw the upper end of the rod 4 from its
wise as seen in Figs. Sand 8, carrying with it the
support 1.
.
l
lever 2'I and through the medium of pull-ro'd 29 15
The base II2 of the cabinet, seen _in Figure 2,
moving the quadrant 24 away from the pawl 22.
'is set in at the front to allow toe room and for
The plate 9 should preferably «be held in its de
entry of air between it and door 30, as indicated
pressed position until the pawl 22 has passed
by the arrow. The base II2 may also be'set in
the notch 23, then released before the door has
at the sides of the cabinet to allow it to be placed
fully closed, but the n‘otch 23 is so formed that 20 closer to a wall on the right or left side. Remov
failure to do this will not prevent closing of the
able corner pieces I I3 may be furnished to flll the
door. It will be noted that the angle c plus b
sides of the base so that the user may remove
is considerably greater than the angie a, hence
one to clear a quarter-round and set the cabinet
the energy stored up in the spring I6Awhen the
closer to a wall, or may leave it on- for appear
» door is at its full-open position will impart sutil 25> ance. This inset base and the ycorner pieces are
cient momentum to the door to carry the _lever
also helpful. in packing and moving the cabinet
20 through the angle a and therebyload the
without damage.
,
spring I6 under tension with suñicient energy for
The freezer 40 is similar to vone shown in my
reopeningv the door as above described.
co-pending application, Serial No. 237,629, filed .
As the door closes it engages the latch end I4, 30 Oct. l 29, 1938, which has‘ become Patent No.
which> is hinged upon the latch lever II in a
2,359,780, dated Oct. 10, 1944, being located simi
direction to allow the ydoor to close without mov
larly with respect to the ice-maker tank 55 and
ing the lever I I and its associated parts. The
to the basket IIIi'which is attached to the cabi
hinge‘joining II and I_4, is of a one-way type
.net door 3. The eutectic tank II5 is similar to
and provided with a spring acting to hold the 35 the tank 2I0 of this earlier application. It will
part I4 in the position shown, with its arcuate
be understood that the means for closing the
end engaging the notch in the striker on the door.
freezer door disclosed in this prior application
By means of a suitable angle and location of the
may be employed in connection with the present
notch surface, the latch end I4 is stopped by
disclosure. A difference -between the freezer and
contact on its arcuate end rather than on one _40 tank arrangement ofgthe present application and
side, thus holding it slightly `out of line with the
that of the earlier application last mentioned
lever iI, canted at an angle so that it holds the
above is that I have madeìthe freezer wider and
door securely-closed. This angle is enough to
the ice-maker tank narrower. This is done to
allow for wear, but not- enough to impose an ex
improve the visibility of the interior of the cabi
cessive toggle load on the depression o! the plate
net, particularly portions of shelves located be
9 for the next opening of the door.
Y
low the ice-maker tank. The arrangement here
'I‘he spring 3| . is attached to the rod 29 and
shown places theice-maker and the freezer in
to a ñxed support on the cabinet so as tobe underan inverted pyramid arrangement whereby the
some tension. It holds the lever 21 against its
user is given an angle of vision which allows a
stop 32, thus establishing the normal position
clear view of the major portion of the food stor
of the plate 9, the lever II and the quadrant 24.
age space.
A
The spring 3l is located so as to pull at an angle
The freezer 40 is an insulated enclosure which
upon the rod 29 and thus- keep this rod from
may -be considered a small- refrigerator within
vibrating. The quadrant 24 is pivoted on the
the main refrigerator. _It is provided with insu
horizontal wall above thè machinery compart-- --= lated walls and with an insulated door 42, the
ment of the cabinet in a manner to ¿allow the
latter being hinged at the right and fitted with a
lever 20 to swing freely below it.
special latch which serves not only to hold the
, The notches 23 and 25 and the end of the pawl
22 are rounded or given a negative rake. This
freezer door closed, but as a means for prying the
I6 to overcome the spring 3l, but is sufficient
to prevent injury to the parts in the event that
siderably lower than that of the main food com
partment and the latter should be held at a tem
__Ã door free when it is frozen shut. A freezer
is not a great enough rake to allowthe spring
of this type should be held at a temperature con
-the user forces the door in a closing direction in
stead of touching the plate 9.
It is preferred
that the negative rake of the notch 23 be greater
than the negative rake of the notch 25, both be
cause this notch has less spring tension to hold
and so as to allow the user to push the door closed
from its two-thirds open position without touch
ing the plate 9.
.
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` The hinge rod 4 is provided with a rigidly at
perature above freezing with a high relative hu
midity. The air of the main food compartment
of the refrigerator will therefore contain enough
moisture to fall below its dew point at the junc
tion of the freezer door andthe »fixed freezer
walls. 'I'his causes frost to collect in the-door
Joint, freezing the door shut.. When the freezer
7 O door isopened after being closed for aconsidera
ble period it is necessary to break the ice thus
formed, hence I have provided means for doing
tached collar 5 having a thrust bearing against
the bottom supporti, which also forms the an
this.
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nular bearing at the lower end of the hinge rod.
Figure 6 is a fractional view showing a side
The upper end of the hinge rod has a bearing 7 Ul elevation of the latch as it would be seen-from
2,410,072
5
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6
the -left as indicated in Figure 1. The freezer
.40 is closed by thel hinged door l2, this door hav
the order of |25, which is clamped against the ~
cabinet to form a substantially tight ñt, prefer
ing rigidly attached thereto .the latch plate or
striker 43. -When the door is pushed .shut this
striker engages and lifts the latch member M,
this latch- or pawl being returned by the spring
4B to secure the door in its closed position. To
The plastic material |23 is poured or forced into
the space defined by the outer metal wall, the
liner, the insulating material and the mold form
|25 through the sprue |26, which'may be in mul
open the latch the lever ‘i6 is moved in the di
rection of its dotted position 46’. and the lug 4l
ably using one or more gaskets as shown at |24.
_ tiple, including one or more risers >or vents'to
insure complete filling of the cavity with the
lifts the latch di clear of the striker 43 so that 10 -plastic material. The mold form |25 is provided
with cores |21 and |23 which may be used to
. the door may be opened. Since the spring 45 is
circulate hot or cold iiuids as required to heat
retained between the latch b_ody 49 and the latch
or cool the plastic material to 'expedite its harden
member £4, while the latch member engages the
ing or to form a hard skin on its exposed sidelug dl, it will be seen that the spring not only
moves the latch down against the lug 41 but 15 next to the mold form. The drawings are sec
tion lined to indicate use of a rubber compound,
thereby moves the lever 4S forward to the po
but it is to be understood that any suitable plas
sition indicated by full lines in Figure 6.
tic material may be used.
Integral with the lever 46 and located below
A mold half similar to |25, but of female form
the lug ¿il is a cam surface d8 which has increasf
ing radii with reference to its pivot point. This 20 to receive the door 3, is used in like manner to
surface is arranged to engage the striker |33 when ` cast the plastic frame or breaker which joins the
inner and outer metal Walls of the door and seals
`’the lever d6 is moved farther than enough to lift
the insulating materialbetween them. It will
the latch ¿it out of engagement with the striker
t3. The purpose of this cam is to break any A be noted that blocks 3Q are not required on the
ice bond which may have been formed‘between 25 door, but the wires 35 are used to secure the
metal walls of the door together after assembling
the door 42 and the body of the freezer 40. , One
them with the insulating material between, pref
continuous movement of the lever 46 rearwardly
erably in a press which holds thesel metal’walls
first lifts the latch and then forcibly pushes the
together while the wires are tied or welded. The
door open far enough to break any ice bond. In
order that the door d2 may be slammed or pushed 30 door thus assembled >is then placed in the mold
form and the plastic material injected as above
closed without danger of damage that might re
described.
'
sult from inertia of the lever d6 I have -provided
It will be noted that the angle of the contact
for movement of the latch'dß .independently of
surfaces between the door and the cabinet walls
the lever d6 in an upward direction. The parts et
and d5 are pivoted upon a common pin but not 35 is different on the hinge side of the door as com
pared with other sides of the door.- These sur
attached together except that the lug di. on the
faces blend into each other at the corners of the
part et provides a positive >means for lifting the
door adjacent to the hinge and all of the corners
latch dd.
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are rounded. The object is to form a smooth
The modified freezer _door latch seen in Fig
door frame in they cabinet and a smooth frame on
- ure 'l is equipped with a bolt i12, which engages
the striker plate |16, forming a Aconventional
the door itself, each of these frames serving the`
spring latch ofthe self-closing variety, which
triple purpose of a frame, of a seal connecting the .
inner and outer metal walls in an airtight man
ner, and of a compressible contact surface to
body lll against the action of spring H3 when 4. minimize air leakage when the door is closed.
'These contact surfaces are at different angles
handle |16 is pulled. I have added an extension
may be opened by means of the handle ile. The
latch bolt |12 is arranged to slide within thelatch
relative to the cabinet walls at different sides, as
|15 to this handle,- so formed that it engages
striker plate llöafter the bolt |12 has been with
above described, but preferably they approach
uniformity with respect to the axis upon which
that the user need only pull on the handle l'lál 50 the door swings. The contact lareas are modi
fled from the conventional form in order that
to ñrst withdraw the bolt |'l2from the striker
drawn from the striker plate.
It is thus seen
plate and then to use the handle |16 and its ex
tensioii> 'ibas a lever to pry the door open by
breaking the-frost or ice around it. This one pull
on the handle l'lßvwill further open the freezer
'each of these surfaces may approach a plane ra
dial with respect to the axis of the door hinge.
This provides for bringing the surfaces together
with the minimum of slippage relative to each ,
other. The plastic material is preferably such
as to provide a smooth, tough skin where exposed
With either type of'latch, the freezer door is
and where the two plastic frames make contact.
l automatically closed by the closing of theouter
One or both of the plastic frames is preferably
door as disclosed in my application, Serial No. '
237,629, ñled October 29, 1938, the rubber bumper 60 soft enough to be slightly vcompressible for the
purpose of improving »the airtightness of the joint 1
6| finally pushing the door d2 closed to its latch
between them when the door is closed.
ing position.
,
This construction eliminates the use of the
The insulating material for cabinet walls is
usual breaker strip with its attendant joints and
preferably in board form or semi-rigid packages.
This insulation is placed within the outer shell (lo corner pieces. Being molded in place, the plastic
frame itself provides both the seal for the insu
of the cabinet and then the cabinet liner is pushed
lation and the finish around the door and around
into place. The blocks 3d of wood or other ma
its opening in the cabinet. It further provides
terial, preferably having a low thermal conduc
two pairs of mating annular gasket surfaces for
tivity but being substantially non-compressible,
better sealing of the door when it is closed. The
are forced into place between the edge of the
exposed plastic surfaces are preferably so round
‘ l liner and edge of the outer shell, as seen in Fig
door d2.
_
ures 2 and 5. Wires 35 are then tied or welded
in place to hold these edges in position and se
cure the blocks 3ft. The plastic material E23 is
molded in place by the use of a mold form onl 75
ed and smooth as to minimize their tendency to
collect dirt and to make it easier to Wipe them,
clean.
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_
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The ice and water tank 55, which will be under»
' .2,410,672
stood by reference to my several issued patents
showing similar tanksused for making‘ice and
storing` it in flotation,- is provided with a cover
56 and a faucet 51. 'I'he tank rests upon and is
refrigerated by the evaporator 60, preferably
formed of sheet metal and provided with a num-l
ber of raised spots 63 which contact the bottom
of the tank 55 for the purpose of refrigerating
separated areas of the tank Wall sothat ice may
be formed thereon and’periodically released to
float in the supply of water'62 'which is stored
' in the tank 55.
' The ice discs 6|'are released to float in the
water during each idle period ofthe evaporator
8 ,
ment of the cover, whereupon the spring 88 acts
to close the cover.
The required push for initiating the spring
closing _of the cover is provided by means of the
rocker 96 (seen in Figures 3 and 11), which is
pivoted on _the lower wall of the freezer 48 at
81 and connected with the push rod 98, which
extends forward throughthe iront vertical wall
of the drip baille 10 and is capped by the rubber
bumper 99, adapted to be engaged by the inner
wall of the cabinet door 3.
-
When'the door is closed the button 99 is in
contact with it and the rod 98 is thereby pushed
to its ‘rearward position, compressing the spring
68, in accordance with the method disclosed in 15 |08. When the door 3 is opened this spring moves
my several issued patents, lparticularly No. 2,145,
the rod 98 forward and the rocker 96 is thereby
773. The tank is provided'with a cover 56 hav
moved counterclockwise until it is stopped by con
ing a handle 80`by means o'f which it can be lifted ’ tact with a suitable stop orwith the rear wallof
and pushed back to the position shown in Fig
the cabinet. If the ice-maker tank cover 56 is
ure 2.
.
s
20 not opened, the reclosing of cabinet door 3 merely
When the cover is thus opened, ice blocks 6|
recompresses the spring |00, but if the cover 56
may be scooped out by means of a perforated
has been opened it is given a slight forward push
spoon or ladle 58k which is shown in -Figure 2.
by the lever 96 when the cabinet door is closed,
The handle of this ladle is provided with a hole
thereby allowing the spring 88 to complete the
so that it can be hun'g upon the hook 59 seen 25 closing of »the cover 56.
»
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at the upper right-hand corner of Figure 1. The ’
The tank 55 is removable from the cabinet
handle extends beyond this >hole in a curved form
without disturbing any of the operating mecha
» so related to the curvature of the cabinet lining
nism. After the tank is removed, as for washing,
that the ladle can be hung on the hook in only
_the cover 56 may be readily removed from the
one position. Thus any water dripping from the 30 tank, whereupon the rod 86 is withdrawn from
ladle will flnd its way into the pan 66, which ex
' the tube 81 and the spring 88 is free. The tube
tends to theright slightly beyond the tank 55. ' 81 is freely removable from the bracket 90, since
The ladle preferably hangs clear of the cover
it is retained in position by the spring only, and
56 so that the cover may be openedwhile the
v the bracket 90 may also be removed from its sup
ladle is in place and the ladle may be vrehung 35 port 9| on the tank. Since therod 98 is required
upon its hook before the ice-maker tank cover
tomove side-wise slightly with the movement of' `
is reclosed. This provides for allowing the ladle
the lever 96 its rear support |02, which retains
to- hang in its position when the tank cover is
one end of the spring |00, is provided with an
opened merely to replenish the water supply. `It
oversize or elongated hole to allow such move- .
will be noted that the tank extends considerably 40
forward of the freezer door 42 and that the space
The refrigerating system employed in cooling
above it in- front of the freezer is clear‘when the
this cabinet includes a motor-compressor unit
door 3 is opened, since the basket | l0 is attached
IML-preferably of the sealed type, which delivers
to the door 3 and swings with it.
compressed refrigerant vaporthrough tube |3| vto
The cover 56 of the ice-maker tank is adapted " the condenser 14, from which the liquid line 16
to be opened by raising at the front and pushing
leads into heat exchange relation with the suc
rearwardly as shown in several of my issued pat
tion line 'I1 and thence to the expansion device
ents, particularly No. 2,145,775, issued Jan. 3l,
|35, which is associated with the valve mechanism
1939. In the present application I show an auto
|31. This valve mechanism is similar to Figure l
matic mechanism for re-closing the tank cover, 50 of my co-pending application No. 346,085, ñled
since itj has been found that users sometimes
July 18, 1940, except that I have here shown the
neglect to do this. The cover 56 is provided with
expansion device as a separate assembly.
a handle 60 for lifting it, whereupon- the cover `
The valve assembly |31 distributes refrigerant
liquid either to the evaporator 60 through the
a beveled portion 82 to allow clearance for a 5_5 tube |32 or to the evaporator |5| through the
wider opening of the tank cover. Attached to
tube |50. Refrigerant flows through the active
is ltilted upward against the freezer 40, which has
the cover 56 by means of ears 84 is a rod 86
which slides within the tube 81, both being sur
rounded by the compression spring 88. The tube
one of these evaporators back through the tube
~ |52 from the freezer or tube 18 from the evapo
rator 60 to the valve assembly |31, to the dryer
81 is provided with a collar to act as a stop, the 5o coil |38 and thence back to the suction side of
tube being freely fitted within a hole in the upper
the motor-compressor unit through the tube 11.
portion of the bracket 90 which isremovably at
The valve mechanism |31 includes an element
which acts in response to changes of evaporator
pressures to actuate a valve controlling the ñow
rearwardly the spring 88 is compressed to provide
65 of vapor from the warmer evaporator 60 to ,the
energy for re-closing the cover.
suction line '11, a liquid valve controlling the
`At the rear extremity of the cove‘r 56 there is
flow of refrigerant to the colder evaporator, and
a rib 92 formed by embossingV the .metal of the
the switch IIS-v0. The assembly |31 also includes
cover or by adding a part to it and this rib is
adapted'to engage the ears 94 of the bracket 90, i ~a check valve through which suction Vapor passes _
70 from the colder evaporator as it enters the as- '
these` ears being notchedto receive the rib 92.
sembly |31, and a check valve through which
tached to the tank 55. As the cover is pushed
The- forms of the rib and- of the notches are such
that the cover is retained in its open ~position
`liquid refrigerant flows from the expansion device
|35 to the‘inlet of the warmer evaporator 80.
against the action of the spring 88, but this an~
The warmer evaporator is the one associated
chorage may be broken by a slight forward move 75 with the ice-maker tank 55 and the colder evapo
2,410,672
sembly |31 to the colder evaporator is closedk
rator is the one within the eutectic tank H5. In
whenever the warmer -evaporatoris operating so
as to prevent liquid refrigerant from flowing into
l addition to these two evaporators there is a third
evaporator or dryer coil |38 connected in series
between the vapor outlet of the valve assembly
|31 'and the suction line 11. This dryer coil is
thus connected in series after whichever one of
ythe two main evaporators is active.
the colder evaporator at that time.
`
The dryer coil l|38 is provided with ñns |39
having their lower edges cut at an angle.
The . ~
ñns may be of parallelogram shape as shown,
or may have some other shape at their upper
y The cycling of the system is as follows: When
edges, but the lower edge is inclined so as to pro
the unit |30 is idle, a pressure rise within the
colder evaporator causes the opening of the valve 10 vide a drip point whereby any condensate col
lected thereon will drip into the pan 66. It will '
which controls the passage of vapor from the
>be noted that the valve assembly |37 and all of
‘warmer evaporator to the dryer coil |38. In >the
‘the connecting tubes are likewise arranged so
event that the warmer evaporator reaches its pre
that condensate will drip from them into the pan
selected maximum pressure prior to the time that
the colder` evaporator reaches its preselected 15 66. In order to provide for collection of con
densate from the outer surface of the freezer
maximum pressure, the higher pressure in the
40, a drip baille ’l0 is arranged below the side
warmer evaporator acts r‘directly to unseat the
of the freezer which extends beyond the drip
_ valve which controls the iiow of vapor from the
evaporator t@ to the dryer coil |38.V
pan 66.
.
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The tube 16 is preferably not a s'o-called “capil
In either case the higher pressure of the warm 20
lary tube,” but is a tube of smaller inside diam
er evaporator thus becomes eiïective upon a bel.
eter than the usual liquid line. This small di
lows which actuates the switch |43, thus closing
ameter liquid line does net_restrict the flow of
the circuit which starts the operation of the
liquid refrigerant to the extent of causing it to
motor-compressor unit |35 and refrigeration is
thus started in the warmer evaporator 6|) asso
25 be cooled by its own expansion, since that would
defeat the purpose of the heat exchanger. On
the other hand the inside diameter of the liquid
-tube 'I6 is small enough> so that there will be a
clean drainage of liquid refrigerant from it and
and the bellows or other pressure-responsive
member moves in the direction of reclosing the 30 the .bottom of the condenser, which would not
valve in the assembly |31 which controls the» . occur if l the inside diameter of the liquid line
'Were large enough to allow vapor bubbles to pass'
passage of vapor from the evaporator 6D to> thev
drops of liquid within the liquid line. At the
dryer coil |38. - As this valve nears- its closing
-end of an operating cycle all of the liquid within
point with the compressor continuingto operate,
the condenser is pushed up through the tube 16
there is 'a rapid drop of pressure in the suction
and the expansion vdevice |35 into the low pres
tube ‘ll and evaporator |38. This reduction of
ciated with the ice-maker tank. As refrigeration
proceeds and the temperature of the evaporator
60 falls, the suction pressure is thereby reduced
sure side of the system. This relieves the motor
compressor unit |30 of the high pressure on its
discharge side and allows for the use Of a split
stream side of the'closing valve. Such action
on the pressure-responsive element effects a corn 40 phase motor without providing any additional
mechanism for unloading the compressor. While
plete closing of the valve and there'is' a further
this effect could be obtained if the tube TB were
drop in the suction pressure until it reaches the>
» either of a capillary size or of the usual'liquid
point where the lower pressure vapor in the colder
line size, there would be a loss of eillciency in
evaporator lifts the check valve which controls'
either of these cases.
its admission to the assembly |37, to the pressure
If the liquid line which forms a part of the
responsive element and byway of the dryer coil
|38 to the suctionline il. The system nowroper- . y heat exchanger were of capillary size the object
of the heat exchanger would be defeated, both
ates to cool the colder evaporator in the _freezer
pressure causes a further fiexure of the pres
V sure-responsive element, which is on the down
and the evaporator E38. This operation continues
until the evaporating pressure in the colder evap
orator has fallen to its preselected minimum, at
which _point the pressure-responsive element
causes the switch IBB to open, thus stopping the '
operation of the unit i3d.
' As will be seen in Figure 1 of the prior ap
plication last mentioned above, there is a check
valve arranged to allow ñow of liquid refrigerant
from the expansion device to the warmer evap
orator and there is also a valve controlling the
because of .the high rate of'flow through the
capillary tube and because of the fact that par
tial evaporation of the liquid within the capillary
tube cools the liquid by wasting some of its own
refrigerating »eiîect instead of by giving up its
heat to the Icold suction vapor. On the other
hand if the tube 16 were of large enough diam
eter to allow liquid and vapor to pass each other
within the tube,» we would have this condition at
‘ the end of an operating period: There would be a
quantity of liquid within the liquid line as the
flow of liquid refrigerant from the expansion 60 compressor stops and this liquid would run down
lin the tube while vapor from the condenser
device to the colder evaporator. This second
valve is mechanically opened coincidentally with « would pass through the capillary device |35. The
liquid remaining in the bottom of the condenser
the closing of the pressure-actuated valve in the
. and in the liquid line would then have to evap
passage between the warmer-'evaporator and the
orate outside of the refrigerator and pass through
dryer coll §33.'
'
. ’
'
the capillary device |35 in its vapor phase, thus
The check valve in the suction passage lead
carrying heat from the room into the refrigerator.
ing from the colder evaporator is for the pur
pose of preventing warm refrigerant vapor flow
The control switch |40 is provided with a lever
|62 designed to close the switch upon downward
ing from the warmer evaporator to the colder
movement. By means of the rod |63, which is
one. Likewise the check valve between the ex
pansion device and the warmer evaporator is to `
slotted at its upper end to allow some free move
prevent flow of refrigerant from the warmer
ment of the pin located in the crank ltd, a lost
motion connection may be made between the
evaporator to the colder evaporator through their
lever |42 and the shaft |1115` This shaft is ñtted
liquid connections with »the valve assembly `|31.
The valve controlling- dow oi' liquid from the as 75 at >its forward end with lthe handle |46. Clock
2,410,672
11
.
«
wise rotation of the handle rotates the rod ~|45
against the resistance of the torsion spring |41,
thus moving .the arm |44 and after taking up any
lost motion this movement opens the valve which
admits vapor from the evaporator 60 to the
dryer coil |38 and the suction line 11, then closes
the switch so that the system starts operating to
cool Ithe ice-maker evaporator 60 and the evap
orator |38.
The lamp 65, seen in Figure 1, is connected to
one side ~of 'the power line |48 and through the
wire 64 to the opposite- side of the line. One of
these wires is provided with a switch, which is
indicated inFigure l but not described in detail.
This switch is closed :by the opening of the door
down over the tank cover 56 into the pan 66, but
an additional drip baille 'l0 is provided to catch
the moisture draining from that portion of the
exterior surface ofthe freezer extending tothe
leftof the ice-maker tank and deliver it to the
drip pan 66. Thus all moisture collecting on
exposed cooling surfaceswithin the refrigerator
will finally reach the trough 60 and be drained
out the back of the cabinet through the tube 'l2
to the condenser 14 on the back of the cabinet and
be thereby re-evaporated to ambient air. This
method of drip dissipation is more fully described
in my U. S. Patent No. 2,145,776, issued Jan.
and reopened when the door is closed by means
commonly used in household refrigerators. The
3l, 1939.
wire |33 from the current source leads to the
condenser 14. The drain tube 'l2 conducts >water
from the trough $8 to the upper one of the several
drip channels 13 which are formed integrally with
the condenser> 14, on its rear (outer) side. The
condensate collected within the refrigerator flows
from the uppermost of these channels 'I3 out its
open left end as seen in Figure 3 into the chan
nel T3 next below it and so on down the exposed
side of the condenser._ _It has been found that in
any ordinary operation of a refrigerator of this
type, where the exposed cooling surfaces are
either maintained above the freezing point or are
defrosted at each cycle of the system, this >type
' as indicated inthe lower portion of Figure 1, and
includes a relay switch or starting circuit breaker,
,Y
The eutectic tank ||5 is nearly filled with the
eutectic freezing solution ||6, leaving room for ,
expansion when the solution freezes. This is a
solution which freezes at a low temperature, pref
-erably about 0° F. The quantity of the eutectic
of drip evaporator will dispose of all condensateA
before anyof it reaches the lowermost one of the
solution and its latent heat of fusion are such as
channels 13.
to -provide a substantial hold-over of refrigerat
35
ing effect so that the freezer is maintained at its
desired low temperature when the system is idle
for a considerable length of time, as in a cold
«io made readily cleanable.
'
~
There is a natural convection flow of air up-A
ward on both sides of the condenser, between it
and the cabinet and between it and the wall
against which the refrigerator is placed. In order
Another fact ~
contributing to the holding of a constant low tem
perature within the freezer 40 will be understood
upon consideration of the method of operating the
switch |40 and the valvemechanism |31. These
_ mechanisms provide for starting refrigerating ef
.to insure that the refrigerator is not placed too
close to the wall, I have formed the condenser sup-r
ports 15 so that they extend rearwardly of the con
denser to contact theA wall against which the re
frigerator is placed. It will be seen that I have
extended >the supports 15 upwardly considerably
fect in the evaporator |5| whenever its temper
aturerises to-a predetermined limit, regardless of
farther than the condenser. This provides a ver
tical fiue above the condenser so that when the
what temperature may obtain within other por
tions of the refrigerator. This switch and valve
refrigerator is properly placed against the wall of
a room a flue is formed to provide an additional
mechanism are more fully described in my'co- :
pending applications, No. 331.633, fìled'ADril 26.
i
_The advantage gained by forming `this drip
evaporator on the side ~-of the condenser »away
from the cabinet rather than on the side next to
the cabinet, as shown in my U. S. Patent No.
2,145,776, is that the channels 'i3 are thereby
room. During operation 'of the evaporator coil
|5| the eutectic solution freezes upon this coil,
first at the bottom of the tank H5, since the re
frigerant flows first through the lower legs of the
coil |5|. This method of freezing an eutectic
solution from the bottom upwardly is covered in
my issued patent, No. 1,827,097.
«
In Figures 2 and 3 I have shown an improve
ment in the drip evaporator associated with the
motor of the motor-compressor unit |30 while the
other line |48 from the current source leads to
the switch |40. The opposite pole of the switch
|40 is connected by means of the wire (4| with the
other pole of the motor in the conventional man
ner. The motor-compressor unit |30,_is mounted
on rubber blocks or otherwise flexibly supported,
as usual. .
12
Moisture will also condense on the outer walls
of thefreezer 40. Most of this water will drain
draft of thermal circulation drawing air from
near the floor over the 'condenser and drip evap
orator. The column of .air above the condenser
is lighter than ambient air, both because it has
been heated by passage over the condenser and
1940, and 346,085, filed July 18, 1940. This sys
tem of control provides for starting operation of
the system whenever either the freezer evapo
rator or the evaporator which cools the main food 60 because water vapor has been added to it by thecompartment of the refrigerator rises to its cut-in
evaporation of drip water, water vapor being
temperature. Refrigeration is thus supplied ~ lighter than air.
where needed instead of -being controlled by a
The freezer assembly is supported in the cabinet
- compromise method in response to some temper
I by means of brackets 50 and 52. The brackets
ature between that of the main food space and' -_ 50 and latch housing 49 are, beveled at their lower
that of the evaporator which cools the freezer
' extremities so that any moisture collecting there
vor low temperature section of the refrigerator.
on will drain down the outer wall of the freezer
Since dew forms upon the outside of the tank
40 and drip onto bafiie 10. It will likewise be seen
55 and the frost‘forms upon the evaporator 60;
vthat theevaporator supports 5|, depending from
this frost being periodically melted during idle
the freezer to support the evaporator 60, are so
periods of the evaporator,A I have provided the
located thatD any condensate running down them
drip collecting pan 66 to collect the water thus
from the bottom of the freezer will fall‘into the
deposited. The pan 6B is provided with one or
more openings for draining such water into the
't'.ough 68 located below it.
vdrip pan 66.
`
l On the right-hand side of the
freezer there are supports 52 whichserve to sup
»75 port the right-hand side of the freezer and the
2,410,672
is~
.
14
` lright-hand side of the ice-maker evaporator 6B. l , heat leaking means such as are resorted to in
Each of these parts 5B, 5i, and 52 is employed
some present models.
in duplicate at locations spaced from front to
The common practices with respect to gaskets
on refrigerator doors are either to let- the door
gasket lmake contact with a fiat surface such as
the face of the cabinet and with step surfaces par
allel with the face of the cabinet, orv to have the
back. The supports 52 are formed so as to pro
l vide a drip point 53 on each, such drip points
being located above the drip pan 66. '
To facilitate packing of the refrigerator with
out the bad practice of putting screws into. the
.
gaskets contactìagainst angular surfaces which
back of the cabinet and thereby endangering the
air-tightness of the outer wall, which is neces
sary to maintain the insulating material in good
condition, I have provided the _holes 19 in the
converge inwardly toward the center of the door
opening at a uniform angle to the cabinet faceo? each side of the door. Both of these prac
tices cause the gasket to slide upon its contact
parts 15. _Suitable screw hooks or bolts may thus
be used to hold the refrigerator securely against f
ing surface, either at the hinge side of the door or -
_ the back of the packing case.
at the opposite side, according to the practice
15 followed. Unlike these common practices I have
\ in addition to providing the" freezer with an
designed the contact surfaces of the door 'and of
adjustable shelf Ii‘l, >I have provided means for
the cabinet sol as to approach as nearly as ls
facilitating the transfer of food stuffs contained
practicable to planes that radiate from the hinge
axis of the door. kThis causes the door gasket,
v l in small dishes between the freezer and the main
, food' storage compartment of the refrigerator as 20 which in my case is a part of one or both of the
well as in and out of both. The tray |20, prefer
ably of glass, is designed .to ñt closely within-the
freezer and also to ñt in a fore-and-aft' position
on a shelf of the main food compartment. ‘ The
inside width of the freezer is only slightly less
thanV the inside depth of the main food compart
ment, so that the tray will Just go into the freezer
r while it provides somewhat more clearance forair
circulation when placed-in a fore-and-.aft posi
tion on one of the shelves of the main food com
partment.
molded breaker frames, to make contact with its
l mating surface without the objectionable sliding
motion.
Both of the door frames, namely the molded
25 frame of the door itself and the molded frame of-the door opening, are formed with compound
curves joining their contact _areas at least on the
corners adjacent to the hinge side. It will be
vseen that the contact surfaces .of these frames
30 may be in one plane at the latch side, the top and
-
If desired, the tray may be designed with an
.extending flange or with straight sides and made
the lbottom of the door, yhence'the junctions of ’
these surfaces at .the corners on the latch side
y of the door or of its opening may be in one plane
and this plane will still be substantially radial
which normally support the shelf AIi'l in the 35 with respect to the hinge axis ‘of the door. In.
_ of the correct length to be supported by the ribs
freezer. > Such a modified tray, adapted to> serve
order that the contact surfaces of the frames on
as a removable shelf, is shown in place in the
freezer in Figure 1 and identified as E22.
The drawer ille, seen in the bottom of the cab- '
inet, is arranged to slide within the cover or en 40
-the hinge side may be substantially radial with
respect to the hinge axis, these surfaces can not
bein the same plane as the contact surfaces at the
top, bottom and latch side of the door, hence it is
particularly at the corners ofthe door and of its
closure §05.
Since the main food space of the
cabinet is maintained in a high humidity condi
tion because of being cooled by the exposed walls
opening adjacent to the hinge side of the door l
that these compound curves are required> to pro
of the tank 55, by the non-frosting exterior walls
of the freezer to, by the periodically defrosted
evaporator S5 and by the dryer coil 438, none of
'vide smooth, continuous contact areas and have
the door close with the minimum of sliding move
ment between contacting surfaces.
which is continuously frosted, it is not necessary
As will be seen from the horizontal section of '
the `door in Figure 3, the axis of the door hinge is
so located that the door will swing open to allow
tight, though thismay be done if it is desired
tomaintain the drawer at a still higher humidity 50 substantially unobstructed access to the interior
of the refrigerator without swinging beyond the
than that of the main Afood compartment.
plane of the'outer Wall of the cabinet on the
The shelf lill -is of L form and of such propor
right-hand side. This and the absence of a pro
tions that it may be inverted to hang in the posi
, jecting latch on the door allow the door to open
tion indicated by iß‘i' or it may be placed on top
fully when the cabinet is placed ln a right-hand
of the housing i115, as indicated by the dotted
corner
of a room without requiring any extra
lines iûl". This latter position of the shelf is
clearance space for the opening of the door.
. merely to provide for storing it out of the way
'I'he freezer di) and its door 62 are preferably
when it is desired to place some bulky object in
made with molded frames somewhat as described
the large space at the left of the drawer lod.
80 for the outer door of the cabinet, but it is not so
~ that the drawer iiiii be made particularly air
The shelf ldd is of U form Aso as to provide a
double shelf and prevent’ articles placed on its
lower horizontal portion from sliding off.4 An
'important to provide the freezer door with gasket '
means, since heat 'leakage at this point aids in
cooling the main food space of the refrigerator
instead of representing a loss of refrigerating ef
additional shelf loe isl providedl near the upper
left-hand corner of the cabinet and preferably 65 fect to the room as in the case of the outer door.
arranged so that it may be hinged to the position
Since the freezer door ‘will normally be frozen
shown by .dotted lines. This shelf is particularly
shut when left closed for a length of time, there
useful for the storage of butter,- sinc'e this cor-l _will be very little air leakage around the freezer
ner of the refrigerator will be maintained Iat a
door except for a limited period after each time
somewhat higher temperature than the lower 70 it is open. 'I’his freezing shut of the freezer door
is my reason for preferring to make the contact
portions; It is desirable that butter for cur
ing surfaces between the freezer 4U and its door
rent use be stored ata higher temperature than
‘t2 .of metal or of a harder-surfaced composition
is best for other food stuffs, and this refrigerator
is designed to provide the desired higher .tem
than is used around the outer door of the cabinet.
perature space without the use of heating or 75 A soft material, such as is preferred to provide
2,410,372
,
15
.
some gasket eñ’ect around the outer'door, might
beI damaged by the forcible opening of the freezer
- door when it is frozen shut.
16
direction upon the shaft I2 to move the lever 21
'away from its stop 32. For this reason, the con
tours of contacting surfaces of I4 and |88 may
The enlarged detail of door latch seen in Fig. 8
be such as to allow for wear and still hold the
shows how the latch plate 9 is attached by means
door 'tightly closed, as previously explained.
of the pin |8I to the hinge member 8, vwhich is
It will further be noted that the path of the
secured to the outer wall sheet |82 of the cabinet.
pivot |86 upon counter-clockwise movement of
At the opposite side of the latch plate 9, it is . part || is on an arc’ having its center at the center
pivoted by means of the pin |83 to the push rod
of the shaft l2, thus the first movement of Apart
I8, which is in turn pivoted to the latch lever |I 10 ‘|I in a counter-clockwise direction -moves the
by means of the pin |84. For'convenience ln
pivot I 86 away from the surface of |88, which is
assembly, the member I0 is notched to receive
contacted by the part I4. This arrangement in
the pin |84 as theassembly comprising parts ||
sures that the door is held snugly closed and yet
and |4 is inserted in the cabinet wall, whereupon
allows easy movement of parts || and I4 when
the upper splined end of the rod I2 is inserted in
manual contact is made with the plate 9,
the member I| from below and suitably retained
“ In Fig. 8 I have shown sealing contacts between>
at'its -lower end to maintain the spline engage
material |23 of the door with the cabinet liner
ment. "The shaft I2 is supported by bearings I85„„ c |98 and of material |23 of thecabinet with the
` which are secured to the' sheet |82. The members y
II and I4 are hinged together by thev pivot pin .
|86 and are urged into alignment with each other
by means of the coil spring` |81.
,
As the door 3 closes, the striker |88 engages
the member I4, flexing the spring |81 so‘that the
latch member I4 snaps into the position shown in
Fig. 8'to retain the door in its closed position.
'I'he spring |81 is not stiff enough to cause such
'closing of the door to produce any material move
ment of parts II, l2, 21, 29 and 24 since their
weight and the action of the spring 3| oppose
such movement.
It will be seen that the spring '
".f- 3| (seen in Figs. 3, 9 and 10) urges the rod 29
>"~` to the right and this rod is pivoted at |89 to lever
Á21. The location of parts | | and I4 is determined
by the angular position of lever 21 when it engages
the stop 32, which is attached _to the cabinet.
outer metal sheet |95 of the door. In accordance
with the description herein of the shapes of these
contacting surfaces, it is possible that it may be
preferred to have the material |23 of _the door
make contact with material |23 of the cabinet at
both the inner and outer >contact areas. The
choice will be governed to a large extent by pro
duction methods'employed and the relative costs
~ of the metal working dies of special Contour and
the permanent molds to produce the desired con
tours of the molded parts.
Fig’. 9 may be considered as an enlarged detail
of the lower right-hand corner of Fig. 3, showing
the position of the spring I6, lever 20 and pawl
" 22 >when the door 3 is'in its 'partially opened
position, previously mentioned as the one to
which the door‘swings when released by depres
sion of the latch plate 9. The ratchet quadrant
24, pivoted at 28| upon the fixed member 202, is
Spring 3| is attached to the rod 29 by means
urged toward the pawl 22 by means of the spring
of the collar |90 and attached tc the cabinet by
3|, its position being determined by the stop 32
means of support ' I9I.
,
.
40 and by 29 being' linked to 24 by means of the
The main cabinet door, of which a fraction is
pin 284. As the door swings open, due to the
seen in Fig. 8, includes an outer sheet of metal
>initial stress of the spring I6, force is released for
|95 and an inner sheet of metal |96. These two
re-energizing the spring I6 to the extent indí
sheets of metal are separated by the compression
cated in Fig. 9, so that the pawl 22 is retained '
members 34, as previously explained, and are tied
together by means of wires 35. At the latch -jin the notch 23 of quadrant 24 and the door
stands open at an angle of approximately 60°.
position on the door 3 it is permissible that `the
member |88 be welded or otherwise attached to
both sheets |95 and |96. The section of member
' |88 may be reduced, or a, member of low thermal -,
conductivity interposed between |88 >and one or
both of the sheets |95 and |96, if desired to
further minimize thermal conductivity between
these two sheets. It will be _noted that the greater
portion of the part |88 is buried within the molded
insulating material |23 in the same manner as
the members 34 and wires‘35 are buried.V
`It will be seen that the outer sheet |95 of the
door 3 makes contact with the molded plastic ma
terial |23 of the cabinet Wall, while the cabinet
liner |98 makes contact with the molded material
I 23, which forms the frame of the door, thus4
providing a, double seal. The part |Il may be
Shouldthe user Wish to have _the door more
fully opened, she pushes it open and the pawl 22
engages the notch 25 of quadrant 24, retaining
the door in its Íullyopened position, as seen in
, Fig. il).` 'I‘he spring I6 is now stressed to a
greater degree than it was when the door was
closed, so that when the user depresses the plate
9, thus moving the quadrant 24 out of engagement
with pawl 22, the spring I6 causes the door to
swing fully closed and be retained in that position
by means of the latch member |4 engaging the
striker |88. The user will naturally release the
latch plate 9 just prior to the full closing of the
door, so as to allow the latch i4 to retain the
door in the closed position.
»
Referring to Fig. 11, which shows an enlarged
detail of Fig. 2, it is seen that the ears 84 on the
a sufliciently close fit within the molded material
tank cover 56 carry a. pin` 2I0 pivoting thereto the
|23 of the cabinet wall to substantially prevent
member 2|2 to which one end of the rod 86 is
circulation of air into and out of the space en
rigidly attached. Likewise, a member 2|4 at
closing the members || and |4.
tached to the end of the tube 81 forms the support
Due to the fact that the pivot |86 is not moved
and stop for this tube with reference to the
to any appreciable extent by the closing of the
bracket 80, which is supported on the tank by
door 3, and this pivot point is not far out of line 70 means of the support 9|. The left-hand end of
between the center line of shaft I2 and the point
the tube 81 ls preferably tapered or chamfered,
at which I4 contacts |88, the pressure cf |88
so as to allow free movement thereover of the
against I4, due to the force exerted by spring I8
coils of the spring 88. As the rod 86 slides within
urging. the door in an opening direction, does not
the tube 81 with movement of the cover 56, the
produce lsufficient force in a counter-clockwise 75 spring 88 urges the cover 56 toward its closed
andere
-.
P17 ,
mposition, but thejcover is hereshown open and
is retained in the open position by mea-ns of its
rib 92 engaging the ears 94 of bracket 90. The
form of this rib, the form of the ears'94 and the
position of the line of contact between the cover
56 and the tank 55 when the cover is open are so '
related to the pivot point 2in and the action of `
4the spring 88 that the cover will rest in the posi
tion shown in Fig. 11 regardless of the fact that'.
18
»
irrl the form of a plate conforming approximately
to the form of an external face portion of said
cabinet and located in close and approximately
parallel'relation to said face portion.
7. A cabinet, a door for said cabinet, a power
element connected to said door for actuating the
same in either its closing- or opening direction,
and manually actuated means for controlling-said
the spring 88 is urging the cover toward its closed _
power element, said means including a control
element located on a level with a portion of said
position.
door and clear of its swing.
.
In Fig. 11 we also see an end of the rocker 96
(seen in Fig. 3), which is in position to make con
tact with >.the cover 56 upon a. slight movement of
the rod 98.
When Athe rocker 96 contacts the
cover 56 and moves it so that rib 92 is no longer
yretained by the notches in the bottom of ythe
ears 94, vthe spring 88 acts to complete the closing
,
8. A cabinet, a door for said cabinet, a power
element for actuating said door, said power elc
ment being adapted to be energized by manual
movement of said door in either direction beyond
an intermediate position of opening, latching
means for holding said door in closed position,
and manual means for releasing said door from
said closed position for actuation by said power
of the cover 55 on the tank 55.
Features shown in the drawings and not 20 element, said manual means including a plate
conforming closely to the external form of the
claimed herein form the subject matter of my
portion of said cabinet upon which it is located.
application for Letters Patent of the United
9. A cabinet, a door for said cabinet, power
States, Serial No. 633,371, iiled December 7, 1945,
means operatively connected with said door oper
for improvements in Refrigerator, the same being
a division of the present application.
25 able to move it away from its opposite limits of
movement, and manual means for controlling
I claim as my inventiont'
movement’oi said door under the effects ol' said
l. A cabinet, a door for said cabinet, latch
power means, the last said means including a
means for retaining said door in its closed posi
tion, means for releasing said latch means, means
depressible member formed to simulate, when in _
acting to open said door partially from closed 30 normally inoperative position, an area oi' an~
exterior wall of the cabinet.
y
position and close said door from fully open posi
tion, and means for holding said door in an open
position' in opposition to the force of the .last
mentioned means, the third-mentioned means
10. In a cabinet, a door, power means operably
connected to said door for moving said door in
either the opening or the closing direction from
a closed or fully open position, respectively, and
manually operable means controlling said power
being so constructed and arranged as to close and
latch said door in response to the release of the
means, the manually operable means including
last said means.
a part providing a smooth surface for manual
2. A cabinet including an outer door, a power
contact, said surface being located clear of the
element connected with said door to actuate the
same, means for energizing said element vin a 40 door swing and on a level with a portion of said
door.
direction to open said door partially from a closed
11. A refrigerator comprising an insulated
position or in a direction to close said door from
storage space and a machinery compartment, a
a fully open position, and means for latching said
door for said space, energy,_ means located in
door in either closed or open position, manually
said compartment operatively connected to said
actuated means for controlling the actuation of
door and operable to move said door from either
said door by said first mentioned means to moye
a fully closed or a fully open position, a latch
said door from its closed position toward an open
for
holding said door closed in opposition to said
position or to move it from an open position
energy means, and manual control means oper
toward its closed position.
'
v3. A cabinet, a door for said cabinet, me 50 able t0 release said latch, said manual control
means including a control element exposed on the
chanical means for swinging said door in either
exterior of said refrigerator.
direction power means for actuating said rne
12. A cabinet, an outer door for said cabinet,
chanical means, and manually actuated means
latch means for holding said door closed, addi
located clear of the swing oi' said door at door
_level for controlling the action of the ñrst two 55 tional latch means for holding said door open, '
means operable to move said door toward open
said means.
4. A cabinet, a door for said cabinet; me
position upon release of the nist-mentioned latch
6. A cabinet, adoor for said cabinet, mechani
ally operable releasing meansA for said latch
means and to move said door toward closed po
chanical _means for swinging said door in either
sition upon release of the second-mentioned
direction, power means for actuating said me
chanical means, and manually actuated means 60 latch means, and means for controlling the first
mentioned ~latch means including manually op
located clear of the swing of said door for con
erable means on a fixed outer wall of said cabinet.
trolling the action of the ñrst two said means.
13. A cabinet having an cuter door, latch
5. A cabinet, a door for said cabinet, mechanical
means adapted to hold said door in a suiiiciently
means for closing said door, power means for ,
actuating said mechanical means, and manully A open position to permit ready access to the in
terior thereof, resilient means tending t0 close
actuated means located at door level íor‘con
said door from a fully open position, and manu
trolling the action of the ñrst two said means.
cal means for actuating said door, a power ele
means, said manual means including a part lo
ment for said means cooperable therewith to 70 cated at elbow height on a fixed wall of the
cabinet.
,
close said door from fully open position and to
14. In a cabinet, a door for said cabinet, latch
open said door partially fromvclosed position,
means for-'holding said door closed, spring means ,
energized in the direction of opening said door
ally actuated means including a control element 75 when the door is closed, means for» releasing said
said‘mechanic'al actuating means, said manu
2,410,672
20
latch means so that the door will be partially
a wider open position with said spring means
opened by said spring means, said door and
more fully energized after said door has been
manually opened to said wider open position, said
additional latch means being operable to allow
said door to close, said spring means being suiîi
spring means being so constructed and arranged
that momentum Aimparted to said door in the
initial stages of its opening by said spring means
will partially re-energize said spring means in
the direction of reclosing said door, additional
lâtch means for preventing the reclosing of said
door by said spring means, said additional latch
means also being adapted for` holding said door in l0 »
„TVA
ciently energized by said wider opening of the
door to provide energy for fully reclosing said
door and refenergi'zìng said spring means as be
fore in the direction of reopening the door.
GLENN MUFFLY. »
n
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