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Патент USA US2086596

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July 13, 1937.
R. E. BAKER
2,086,596
REFRIGERATING APPARATUS
Original Filed July 2, 1954
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Pm PI/ 15. 5/9/5153
ATTORNEY J
July 13, 1937.
R. E. BAKER
2,086,596
REFRIGERATING APPARATUS
Original Filed July 2, 1954
BY
2 Sheets-Sheet 2
mfg-A0
Patented July 13, 1937
2,086,596
UNITED STATES.
PATENT OFFICE
2,086,596
REFRIGERATING APPARATUS
Ralph E. Baker, Detroit, Mich" assignor to Kel
vinator Corporation, Detroit, Mich, a corpo
ration of Michigan
Application July 2, 1934, Serial No. 733,361
Renewed November 27, 1936
7 Claims.
My invention pertains to household refrigera
tors and more particularly to a demountable com
pressor-evaporator unit and a cabinet therefor.
In refrigerating apparatus and particularly as
adapted for household use, it is desirable to lo
cate the entire refrigerating system within the
cabinet. It is also desirableto provide a freezing
compartment within the cabinet separate from
the food compartment and in which an evapora
10 tor may be disposed for freezing water and vari
ous food substances.
‘
‘
'
(Cl. 62-116)
vitreous enamel such as porcelain may be ap
plied to the metallic surfaces to provide a pleas
ing and sanitary ?nish. The cabinet is closed by
a heat insulating door 8 which is pivotally sup
ported at one side of the cabinet by suitable 5
hinges in the usual manner, and which is shown
in open position in Fig. 1.
A heat insulating partition wall or ba?le Ii is
provided within the cabinet and extends down:
wardly from the middle of the top wall 3. The 10
partition wall it extends transversely across the .
It is accordingly an object of my invention to
provide a simpli?ed two-temperature refrigerator
structure, and a demountable compressor-evap
15 orator unit therein.
It is also an object of my invention to provide
a simpli?ed refrigerator comprising a freezing
chamber, a food- storage compartment, a machine
compartment, an evaporator-compressor unit
20 and means for conveniently mounting and sealing
the unit in the cabinet to support the compressor
in the machine compartment and the evaporator
in the freezing chamber.
.
Another object of myinvention is to provide a
25 refrigerator comprising 9. depending bai?e wall
and means supported across the lower edge there'
of ‘for supporting a condenser-compressor unit
and an evaporator on opposite sides thereof.
The invention itself, however, both as to its
30 organization and its method of operation, to
gether with additional objects and advantages
thereof, will best be understood from the follow
intermediate portion of the top wall 3 of the
cabinet and divides the upper space therein. The
upper edge of the rear wall 2 of the cabinet ter
minates at a point opposite or level with the lower 15
edge of the partition wall‘! I . In order to support
the elements of the system and enclose a freezing
chamber and a machin; compartment on opposite
sides of the partition wall II a base plate I3 is
provided abutting the lower edge thereof.
20
The lov. or edge of the partition wall II is pro
vided with fastening means comprising threaded
bolts it which project downwardly through aper
tures’in the base plate which is clamped ?rmly
in position by wing nuts IS on the end of the bolts.
A horizontally disposed ledge l1 projects into the
cabinet from the rear wall 2 and carries fasten
ing means ill by which the rear edge of the base
plate is supported and tightly sealed in position.
The portion of the base plate l3 extending 30
between the partition wall It and the rear wall
2 of the cabinet is provided with a heat insulating ,
ing description of specific embodiments, when, member 22 upon which a compressor unit 22 may
read in conjunction with the accompanying‘ be mounted on resilient supports 24 in the usual
drawings, in which:
-
manner.
35
Fig. 1 is a, front elevational view showing a re
- A refrigerant evaporator 25 is mounted in
frigerator arranged in accordance with one form heat conductive relation upon the portion of the
of my invention;
base plate l3 which extends between the par
Fig. 2 is a sectional view on line II—II thereof; ' tition wall II and the door of the cabinet. Suit
40 Fig. 3 is a detail view showing the demountable able conduits 26 and 21 permanently intercon- 40
compressor-evaporator unit;
‘
nect the‘compressor-condenser unit 23 with the
Fig. 4 is a sectional view taken on line .IV-IV evaporator 25 and extend along the upper face
of Fig. 2;
Fig. 5 is a vertical sectional view showing a
refrigerator arranged in accordance with another
embodiment of my invention; and
Fig. 6 is a transverse sectional view on line
VI—VI of Fig. 1.
_
Referring more speci?cally to the drawings
50 the refrigerator shown in Figs. 1 and 2 consists
of a cabinet I comprising a rear wall 2, a top wall
3, a bottom'wall 4, and side walls 8 of the usual
heat insulating structure. The walls are pref
erably provided with a sheet metal covering 1
55 on the inner and outer surfaces and a layer of
of the base plate I3, as shown in Fig. 3. When .
mounted in the cabinet the conduits 28 and 29 ex
tend through slots 28 and 29 provided in the 45
lower edge of the partition wall‘ ll adjacent the
base plate l3, as shown in Fig. 4. The compressor
23 may be controlled by a thermostatic switch >
(not shown) for intermittent operation in ac
cordance with‘the temperatures within the cabi- 5.3}
.net in the usual manner.
A front plate 32 is secured to the front edge
of the base plate l3 in vertically disposed posi- X
tion and is rigidly braced by suitable brackets 32
extending diagonally between the upper edge of 55
2,086,696
2
the unit may be readily inserted within the groove
the front plate and the base plate. Openings are
provided in the front plate 32 to provide con
venient access to the freezing chamber for the
insertion and removal of freezing trays 34. The
openings into the freezing chamber are closed by
doors 36, the inner edges of which are pivotallyv
mounted on hinges‘ 31. The peripheral edges of
the front plate 32 are curved inwardly and the
surface thereof may be provided with a coating of
10 a vitreous enamel such as porcelain to present
a pleasing appearance.
'
Sealing gaskets 4| of some ?exible material
such as rubber may be provided on the edges of
the base plate l3 to engage the metallic lining of
the cabinet and provide a tight seal therebetween,
as shown in Fig. 4. Shelves 42 are provided with
in the lower portions of the cabinet to support
food articles stored therein in the usual manner.
The top wall may preferably be terminated adja
20 cent the partition wall and does not extend rear
wardly thereof; the machine compartment being
enclosed only by the outer metallic covering
through which a suitable vent 45 is provided.
The refrigerant compressor-evaporator unit
25 may be very conveniently removed from the cabi-.
net I through the open doorway thereof by un
screwing the wing nuts [5 and I9, then lowering
.the base plate I3 sufficiently to withdraw the
compressor 23 under the lower edge of the par
30 tition wall H. In a similar manner a new unit
may be very easily installed within the cabinet.
In accordance with‘ my installation the com
pressor-condenser unit when installed maybe
elevated to a position which is very close to the
35 upper metallic covering 1 of the cabinet, limited
only by the vibrating distance, thereby providing
a very compact assembly. It will be apparent
that the base plate l3 serves the purpose of sup
porting the compressor and the evaporator as a
40 unitary demountable structure, and also when
the base plate is mounted. within the cabinet
abutting the lower edge of the partition wall II
it serves to enclose the freezing chamber and
machine compartment on opposite sides thereof.
5 in the ledge ill on the rear wall of the cabinet..
This provides a rigid support and guide for the
rear edge of the unit and it is then only necessary
to lift the front edge to a level horizontal position
and the supporting bolts I‘ are readily passed
through the apertures in ‘the base plate l3. By
applying the wing nuts l5 to the lower ends of the
bolts the unit may then be conveniently secured
in position with the compressor-condenser unit
and the plate evaporator supported in their re
spective compartmentson opposite sides of the
partition wall II.
In operation the heat from the food compart
ment is absorbed by the base plate l3 which is
associated in heat conductive relation with the
evaporator 25. If desired the thermal coupling
of the base plate with the food compartment may
be increased by providing suitable heat conduc
tive ?ns projecting downwardly from the lower
surface thereof.
It will be seen that I have provided a two tem
perature refrigerator comprising a simpli?ed
cabinet structure in combination with a compact
compressor-evaporator assembly which is con
veniently mountable therein as a unit to provide
separate machine and freezing compartments
with a minimum encroachment upon the useful
storage space.
30
While it is necessary for the purposes of illus
tration to describe the several disclosed forms of
my invention in detail, it will be apparent that the
invention is not so limited, and that other forms
and applications thereof are embraced within the
scope of the appended claims.
I claim as my invention:
1. In combination a refrigerator cabinet en
.closed by heat insulating walls, a heat insulating
partition wall depending from and extending
transversely across an intermediateportion of the
top wall of said cabinet, a heat conductive base
plate, heat insulating material on said‘base plate
adjacent one edge thereof, a refrigerant com
pressor unit mounted on the insulating material
adjacent one edge of said base plate, a refrigerant
45 The base plate l3 serves also to provide thermal
vevaporator mounted adjacent an opposite edge
coupling between the evaporator and the food
storage compartment.
In another embodiment of my invention I pro
vide a sealing groove 5| in the ledge II on the
50
rear wall of the cabinet, as shown in Fig. 5. In
this arrangement the threaded fastening bolt l9
adjacent the rear wall is entirely eliminated, and
a flange '53 is extended from the block of heat
insulating material 22 on the base plate l3 into
cooperative relation with the groove 5|. The
lower surfaces of the ?ange 53 and the groove 5|
are provided with ‘smooth curved surfaces and
the upper surfaces are provided with stepped por
60 tions which cooperate to provide a tight sealed
joint and support the weightof the machine.
of said base plate, means operatively intercon
nected said compressor and said evaporator, and
means for supporting said base plate abutting the
lower edge of said partition wall whereby com 50
partments are de?ned on opposite sides of said
partition wall to separately enclose said com
pressor unit and said evaporator respectively
' whereby they may be removed therefrom by a
55
downward movement.
.
2. In combination a refrigerator cabinet en
closed by heat insulating walls, a partition wall
depending from an intermediate portion of" the
top wall of said cabinet, a base plate, a refrig
erant compressor unit mounted adjacent one edge
of - said base plate, a refrigerant evaporator
When it is desired to remove the compressor
mounted adjacent an opposite edge of said base
evaporator unit from the cabinet it is only neces
plate, means operatively interconnecting said
sary to remove the fastening means i 5 under the. compressor and said evaporator, means for se
6.5 partition wall II, and the base plate [3 may then curing said base plate in abutting. engagement
be tilted downwardly as indicated by the dotted against the lower edge of said partition wall, a
lines in Fig. 5. The unit may then be lowered ledge projecting into the cabinet and means for
su?iciently to permit the'compres'sor to pass
under the lower edge of the partition wall and
through the open doorway of the cabinet.
‘
securing the adjacent, edge of the base plate
thereto whereby machine and freezing compart
ments are enclosed on opposite sides of said par; 70
tition wall and the compressor and the evaporator .
The installation of my unit is very conven
iently accomplished with this arrangement by in- ' are supported in their’ respective compartments.
3. In combination a refrigerator cabinet en
serting the unit within the cabinet and lifting it
to the inclined position represented by the dotted closed by heat insulating walls, a heat insulating
lines in Fig. 5. The ?ange 53 projecting from " partition wall depending from and extending 76
2,086,596
transversely across an intermediate portion of
the top wall of said cabinet, a heat conductive
base plate, heat insulating material adjacent one
edge of said base plate, a refrigerant compressor
unit mounted on the heat insulating material ad
jacent one edge of said base plate, a refrigerant
evaporator mounted adjacent an opposite edge of
one edge of said base plate, a refrigerant evap
orator mounted adjacent an opposite edge of said
base plate, means for operatively interconnecting
said compressor and said evaporator, fastening
means on said partition wall for securing said
base plate in abutting engagement against the
said base plate,,means operatively interconnecting
lower edge thereof, and self sealing means co
operatively disposed on the rear wall of the
said compressor and said evaporator, fastening
cabinet and the adjacent edge of the base plate
whereby they are forced into tight sealing rela 10
10 means on said partition wall for securing said
base plate in abutting engagement against the
' lower edge of said partition wall, a ledge pro
jectlng into the cabinet from the rear wall and
fastening means thereon for securing the adjacent
edge of the base plate thereto whereby machine
20
3
tion by the weight of the compressor unit. _
6. Refrigerating apparatus comprising in com
bination, a cabinet having a machine compart
ment and a second compartment separated by an
insulated upright wall, removable supporting
and freezing compartments are enclosed on oppo
means extending on opposite sides of said wall,
site sides of said partition wall and the com
pressor and the evaporator are supported in their
a refrigerant condensing element supported by
respective compartments.
chine compartment, a refrigerant evaporator sup
4. In combination a refrigerator cabinet en
closed by heat insulating walls, a heat insulating
said means on one side of said wall in the ma
ported by said means on the opposite side of said ‘
wall in said second compartment, and refrigerant
partition‘ wall depending from and extending ' conduits interconnecting said element and said
transversely across an intermediate portion of the
top wall of said cabinet, a base plate, a refrig
25 erant compressor unit mounted adjacent one edge
of said base plate, a refrigerant evaporator
mounted adjacent an opposite edge of said base
plate, means for operatively interconnecting said
compressor and said evaporator, means for se
30
curing said base plate in abutting engagement
against the lower edge of the partition wall, and
self sealing means whereby the rear wall of the
cabinet and the adjacent edge of the base plate
are forced into tight sealed relation‘ by the weight
of the compressor unit.
5. In combination a refrigerator cabinet en
closed by heat insulating walls, a heat insulating
wall depending from and extending transversely
evaporator, said cabinet being provided with an
opening leading to said second compartment,v
and said removable supporting means, refrig 25
erant condensing element and refrigerant evap
orator being removable bodily from said cabinet
by a downward movement and through said open
ing without disconnecting said conduits.
'7. In combination a refrigerator cabinet having
heat insulating side, back, top and bottom walls,
a partition wall depending from the top wall of
said cabinet, a base plate, quick releasable means
for supporting said base platev abutting the lower
most edge of said partition wall whereby sep 35
arated compartments are enclosed from the upper
space within the cabinet on opposite sides of said
partition wall, and operatively interconnected re
across an intermediate portion of the top wall of frigerant evaporator and compressor means sup
40 said cabinet, a‘ heat conductive base plate, heat » ported, on said base plate on opposite sides of 40
.
insulating material on said base plate adjacent said partition wall.
one edge thereof, a refrigerant compressor unit
RALPH E. BAKER.
mounted on the heat insulating material adjacent
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