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Патент USA US2113483

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April 5, 1938»
c. s. KNIGHT
v2,113,483
WATER COOLER
Filed Nov. 23, 1934
2 Sheets-Sheet l
3mm
f Í.
.April 5, 1938-
c. s. KNIGHT
2,113,483
WATER COOLER
Filed Nov. 2s, 1954
’ï 2 sheets-sheet 2
2,113,483
Patented Apr. 5, 1938
UNITED STATES rA'raN'r-
oFFlcE Ä 1
2,113,483
‘WATER COOLER
'
'
Charlotte S. Knight, Merrick, N. Y.
Application November 23, 1934, Serial No. 754,515
17 claims. (Cl. 62-142)
The present invention relates to water coolers
and more particularly to those for cooling water
before it passes to a drinking fountain.
5
An object of the invention is to provide a water
cooler particularly adapted for use in office build
ings, although it may be used in any capacity
where cooled drinking water is desirable.
Another object is the provision of a cooler so
designed that solidified carbon dioxide or dry ice
may be economically utilized as the refrigerant.
A further object is to provide a water cooler
that is simple in construction, and which may be
easily and quickly charged with refrigerant and
operated with minimum attention.
With the foregoing and other objects in view,
the invention will now be more fully described,
~ reference being had to the accompanying draw
ings, in which:
Figure 1 is a side elevation of the preferred
embodiment of my invention;
Figure 2 is a vertical section thereof;
Figure 3 is a detail of the means for securing
the feeding device to its shaft;
Figure 4 is a side elevation partly in section of
a modified form of my invention;
Figure 5 is a detail View of the closure plate
used in the form shown in Figure 4;
Figure 6 is another modification showing the
use of a filter in connection with the water res
30
ervoir;
'
Figure 7 is an end view thereof; and
Figure 8 is another modification showing the
use of a filter positioned below the water reser
voir.
Referring to Figures i and 2, there is illus
trated the preferred embodiment of my invention
in which the numeral l0 designates a water cooler
comprising a water reservoir ll having an inlet
l2 in its base and an outlet i3 in its top wall
40 leading to a drinking fountain i4.
The upper
wall l5 of the reservoir is provided with an open
ing i6 through which is inserted the lower portion
or section ll of a refrigerant receptacle it.
The refrigerant receptacle is also provided with
A
l
a section projecting above the Wall l5 of the res
ervoir and constituting a storage compartment I9.
This compartment is separated from the inner or
lower compartment il by means of a feeding de
vice 20 which also constitutes a partition between
the two compartments. While different types of
feeding devices may be utilized, I prefer the one
disclosed in the drawings. This comprises a
sphere or ball 2i having a roughened surface and
mounted for rotary movement Within the refrig
erant receptacle above the wall l5 of the reservoir.
'I‘he means for rotating the feeding device 20
comprises a. rod or shaft 22. passing through the
center of the ball and secured thereto by a ma
chine screw 23.
60
The ends of the shaft 22 are
journalled in opposite walls of the refrigerant
receptacle and one end thereof is extended and
projects through a suitable packing box 24. This
shaft end comprises a crank or handle 2l which
upon rotary movement actuates the feeding device
for apurpose to be hereinafter described.
In each embodiment of my invention I form
the refrigerant receptacle into two separate sec
tions'or compartments. The lower compartment
Il extends substantially to the bottom wall of
the reservoir l I and is flxedly secured thereto with
its upper edge turned outwardly to form a flange
26. This flange rests upon the outside of the
top wall I5 of the reservoir and may be secured
thereto in any suitable manner. For purposes of
convenience, the upper and lower compartments
are of cylindrical formation, with the upper com
partment being of a diameter slightly less than
that of the lower one to permit the lower por
tion 2l of the upper compartment to be inserted
within the lower compartment-*Ir‘l/ïl The upper
compartment is provided with an/ânnular flange
28 positioned above its lower extremity and this
20
flange contacts with the flange 26 and rests there
upon when the refrigerant receptacle is assem
bled. This constitutes a very satisfactory form
of slip joint which effectively seals the refriger 25
ant receptacle from the atmosphere. It is to be
understood that the lower compartment Il is
entirely sealed and out of communication with
the interior of the reservoir I i.
The purpose of detachably connecting the up 30
per or refrigerant storage compartment to the
lower section i1 is to permit a preliminary charge
of the refrigerant, which preferably is a disc or
wafer of solidified carbon dioxide or dry ice, to
be inserted in the lower section Il. 'I'his is to 35
preliminarily cool the water contained in the
reservoir li. The storage compartment i9 is
packed with dry ice and after the preliminary
charge has suillciently cooled the water in the
reservoir, it is merely necessary for anyone who
desires to use the drinking fountain Il to rotate
the handle 25 several revolutions. This will ro
tate the feeding device 20, which, by reason of
the roughened surface, will chip off particles of
the dry ice in the storage compartment and per
mit them to drop by gravity to the lower section
45
il. It will thus be apparent that the water is
suing to the drinking fountain I4 may be cooled
with a minimum of attention, the -only requisite 50
being that a charge of dry ice be inserted in the
storage compartment and a. preliminary wafer
placed in the lower compartment Ii. While my
cooler is designed for universal use, it is particu
larly adapted for oflice buildings. In this con 55
nection, the preliminary charge or Wafer may
be inserted in the lower compartment in the
morning and thereafter the water in the reser
voir will be maintained sufliciently chilled by the
2
2,118,483
transfer of small particles of dry ice from the
storage compartment to the lower section' I1.
Preferably, the reservoir || is double walled to
permit an insulating packing 29 to be secured
between the walls. Furthermore, the storage
compartment |9 or that portion of the refrigerant
receptacle projecting above the reservoir, is also
of double wall construction with suitable insu
lating material 30 packed between the walls. An
10 insulated cover 3| is provided to close the upper
. end of the refrigerant receptacle.
20
issues to the fountain. It is further apparent
that both the refrigerant receptacle and the filter
may be easily and quickly detached with a mini
mum amount of time and trouble.
In Figure 8, I have illustrated a combined waterv
cooler and filter in which the filter casing 53 is
positioned below the water reservoir 54. The re
frigerant receptacle 55 is similar to that illus
trated in Figures 1 and 2.
'
‘
While I have designated my invention as a>
water cooler and referred to it as such ln the
In order that the dry ice in the storage com
specification and claims, it is to be understood
partment will at all times contact with the ball
2|, a suitable spring 32 is positioned` in the top
of the storage compartment between the cover
3| and the store of dry ice. The upper end of
the spring is preferably secured to the cover while
the lower end is connected to a plate 32’ which,
when in position, pressesagainst the dry ice.
that it may be utilized for cooling varius liquids
1.»
.
and that the term water is-used broadly.
I claimì-
'
ll
1. In a water cooler, a water reservoir having
inlet and outlet passages,_a refrigerant receptacle
having a section thereof projecting within said
reservoir and out of communication therewith.
Referring to Figure 4, I have illustrated a modi- „ said receptacle having a section comprising a
fication in which the refrigerant receptacle is
refrigerant storage compartment disposed exte
formed as an integral unit instead of comprising
detachable sections as described in connection
with Figures 1 and 2. In this form, the water
riorly of the reservoir, and a movable partition .
between the two sections for controlling the dis
charge of refrigerant from one to the other.
2. In a. water cooler, a water reservoir having
inlet and outlet passages, a refrigerant receptacle
supported intermediate its ends by a wall of the
reservoir 'and having a section thereof projecting
tition for separating the lower compartment from within said reservoir and out of communication
said receptacle having a section com
80 the upper or storage compartment 31 as in tinn therewith,
prising a refrigerant storage compartment dis
other embodiment. In this form of the dev'c^
the refrigerant receptacle is provided with an posed exteriorly of the reservoir, and a movable
opening 38 positioned between the upper wall cf' partition between the two sections for controlling
the reservoir and the feeding device 36. The the discharge of refrigerant from one to the other.
3. In a water cooler, a water reservoir having 35
opening is closed by a slide plate 39 having an
opening 40 of the same diameter as the inner inlet and outlet passages, a refrigerant receptacle
supported intermediate‘its ends by the top wall .
wall of the receptacle. To permit the easy in
of the reservoir and having its lower portion pro
sertion
providedand
with
removal
an integral
of the handle
slide plate
4| having
39, it o. jecting vertically within the reservoir and ter
minating adjacent the bottom wall thereof, the
40 combined stop and sealing flange 42 which se
upper portion of said receptacle comprising a re
curely closes the opening 38 against the atmos
reservoir 33 supports the refrigerant receptacle
34 with the lower section or compartment 35
projecting within the interior of the water re.,
ervoir. The feeding device 36 constitutes a par
phere.
'
In use, when it is desired to insert a preliminary
charge into the lower compartment 35, it is merely
45 necessary to remove the side plate 3S and slip the
dry ice wafer or disc through the opening 38 and
then return the slide to the position shown in
Figure 4. Thereafter the feeding device is actu
ated whenever it is desired to use the drinking
fountain.
In Figure 6, there is illustrated a combined
cooler and ñlter. In this arrangement, the water
reservoir is formed in two sections, one section 43
supporting the refrigerant receptacle 44 and the
55 other section 45 supporting the drinking fountain
46. The walls of both sections are insulated as
_in the other forms and the inner wall 41 of the
section 45 constitutes a filter casing for receiving
a substantially dome-shaped filtering element 43
similar to that shown in my copending applica
tion Serial No. 725,358, filed May 12, 1934.
The section 43 is provided with a supporting
and clamping plate 49 at its open end and when
the sections are placed in the position shown in
65 Figure 6, the filtering element is securely clamped
between the plate 49 and the casing 41 by means
of suitable wing nuts and bolts 50.
With this arrangement, it is apparent that the
water entering the reservoir through the inlet 5|
70 is not only cooled by the dry ice in the refrigerant
receptacle, but is also filtered before it passes
through the outlet 52 to the fountain 46. Fur
thermore, by reason of having the filter consti
tute a portion of the water reservoir, there is no
75 chance for the water to become warm before it
frigerant storage compartment disposed exterior
1y of the reservoir, and a movable4 partition be
tween the upper and lower portions of the recep
tacle for controlling the discharge of refrigerant 45
from one to the other.
4. In a water cooler, a water reservoir having
inlet and outlet passages, a refrigerant receptacle
having a section thereof projecting within said
reservoir and out of communication therewith,
said receptacle having a section comprising a re
frigerant storage compartment disposed exterior
ly of the reservoir, and means carried by said re
ceptacle and controlling the discharge of the re
frigerant from the storage compartment to the
section thereof positioned Within the reservoir.
5. In a water cooler, a water reservoir having
inlet and outlet passages, a refrigerant receptacle
having a section thereof projecting within said
reservoir and out of communication therewith,`
said receptacle having a section comprising a re
frigerant storage compartment disposed exterior
ly of the reservoir, and a feeding device positioned
within said receptacle and separating the storage
compartment from the lower section of the recep
tacle, said feeding device controlling the discharge
of the refrigerant from one compartment to the
other.
6. In a water cooler, a water reservoir having
inlet and outlet passages, and a refrigerant re
ceptacle supported intermediate its ends by the
top wall of the reservoir and having its lower
portion projecting vertically within the reservoir
and terminating adjacent the bottom wall there
of, the upper portion of said receptacle compris
ing a refrigerant storage compartmentv >disposed
_ exteriorly of the reservoir, and Ya feeding device
positioned Within said receptacle'and separating
the storage compartment from the lower por
tion of the receptacle, said feeding device .being
operable to remove some of the refrigerant from
the storage compartment and permit it> to'drop
by gravity to- the lower portion of the receptacle.
7. In a water cooler, a w'ater reservoir having
inlet and outlet passages, a dry ice receptacle
supported intermediate its ends by the top wall of
the reservoir and having its lower portion pro
jecting within the reservoir and out of communi
cation therewith, the upper portion of said -recep
tacle comprising a storage compartmentdisposed
exteriorly of the reservoir, and a .feeding device
positioned within said receptacle _and separating
the storage compartment from the lowerpor
tion of the receptacle, said feeding device being
operable to remove particles of the
ice'from
the storage compartment and permit vthem to
drop by gravity to the lower portion off-the re
^
ceptacle.
3
inlet and outlet passages and provided with an
opening in one ofv its-walls, a refrigerant recep
tacle comprising an inner section mounted in the
opening and extending through the same into the
reservoir, an outer section detachably connected
to the inner section and constitutingl a storage
compartment for the refrigerant, and feeding '
means carriedby the outer section and removable
therewith from the inner section, said feeding
means controlling the discharge of the'refrlgerant
from `the outer section to the inner section.
Y 13. In a water cooler, a water reservoir having
inlet and Voutlet passages, a dry ice receptacle
supported intermediate its ends by the topwail of
the reservoir and having its lower portion project
i118 Within the reservoir and out of communica
15
tion therewith, the upper portion of said recep
tacle comprising a. storage compartment dis-"
posed exteriorly of the reservoir, a. feeding device
positioned within said receptacle and separating
the storage compartment from the -lower por 20
tion of. theY receptacle, said feeding device being
operable to remove particles of the dry ice from
8. In a water cooler, a waterreservoir 4having
inlet and outlet passages, a dry ice Vreceptacle
supported intermediate its ends by the .top'fwall of
-the reservoir and having its lower. portion pro
jecting within the reservoir and‘out of communi
cation therewith, the upper portion of said re
ceptacle comprising a storage compartment dis
the storage compartment `and'permit them to
dropby gravity to the lower portion of-the re
ceptacle, vsaid -receptacle being provided with an
opening positioned> exteriorly of the reservoir
and below the feeding device~ and storage com-v
partment for ’ permitting a preliminary charge
of dry ice to be placed 'in the lower .portion of the
posed exteriorly of the reservoir,v >and‘azfeed
lng device positioned within said receptacle .and
In a water cooler, a 4water reservoir hav
separating the storage compartment-.from the .ing14.inlet
and outlet‘passages, a refrigerant're
lowerV portion of the receptacle,'said_feeding de
ceptacle having a section thereof projecting with
receptacle.
vice comprising a rotatable memberfha'ving a
roughened surface contacting with theìdryice in
'
`
'
in said reservoir and out, of communication there
with, said receptacle having a section comprising
the storage compartment and adapted » upon ‘ a refrigerant storage compartment accessible to
rotary movement to chip off particlesoffthe dry the exterior of the reservoir, and a movable par-=
.ice and permit them to drop by _gravity-*to the tition between the two sections.
'
40 -lower portion of the receptacle.
g
-_
9. .In a water cooler, a water reservoir having
an inlet in its bottom wall andan outlet in its-top
wall, a refrigerant receptacle having a section
thereof projecting within said reservoir and out
45 of communication therewith, said'receptacle hav
ing a sectionv comprising a refrigerant storage
, compartment disposed exteriorly of the reservoir,
and a drinking fountain connected to the outlet
and supported by the reservoir above the same.
10. In a water cooler, a water reservoir having
inlet and outlet passages and provided with an
opening in one of its walls, a refrigerant recep
tacle comprising an inner section mounted in
the. opening and extending through the same into
55 the reservoir, an outer section detachably con
nected to the inner section and constituting a
storage compartment for the refrigerant, and
means carried by the outer section and controlling
the discharge of the refrigerant to the inner sec
tion.
.
.11. In a water cooler, a water reservoir having
inlet and outlet passages and provided with an
opening in one of its walls. a refrigerant re
15. In a water cooler, a water reservoir having '
inlet 'and outlet passages, a refrigerant receptacle 40
having a section thereof projectingv within. said
reservoir and out of communication therewith.
said receptacle having a section comprisinga re
frigerant storage` compartment accessible to the '
exterior of the reservoir, and means carried by>
said lreceptacle Vfor controlling the discharge> ofg
the refrigerant from one section to the other.
16. In a water cooler, a water reservoir formed
of two sections, one of which is provided with an
inlet passage and the other with an outlet
,
a cooling element mounted in one section in the
path of the incoming water, anopen ended filter
fitted in the othersection in the pathof the out
ñowing water, and means for clamping _the reser
voir` sections together and for clamping the
marginal edges of the filter between said sections.
- 17. In a water cooler, a waterreservoir formed
of two sections, one of which is provided with an
inlet passage and the other with an outlet passage,
a refrigerant receptacle mounted in the section
provided with the inlet passage and having its
inner end in close proximity thereto in the path
ceptacle comprising an inner section mounted in of the incoming water, an open ended filter ñtted
the opening and extending through the same into in and substantially encompassing the interior of
the reservoir, an outer section detachably con >said section and communicating with the outlet
nected to the inner section and constituting a
storage compartment for the refrigerant, and passage adjacent the inner end of said filter,
means for clamping the reservoir sections to
feeding means carried by one of the sections and
gether
and for clampingfthe marginal edges of the
70 for controlling the discharge of the refrigerant filter between said sections.
.
from the outer section to the inner section.
70
12. In a water cooler, a water reservoir having
onanwmsxmom.
A
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