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Патент USA US2405432

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Aug. 6, 1946.
H. W. KLEIST
2,405,432;
COOLING APPARATUS
Original Filed March 20, .1959
2 Sheets-Sheet 1
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Aug. 6, 1946-
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COO‘LING‘
2,405,432
APPARATUS
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Original Filed March 20,- 1939
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2,405,432
Patented Aug. 6, 1946
UNITED STATES PATENT OFFICE
COOLING APPARATUS >
Herman w. Kleist, Chicago, 1-11., .assignor "to Dole
Refrigerating Company, Chicago, 11]., a corpo
ration of Illinois
Original application March 20, 1939, Serial ‘No.
262,910. Divided and this application April 6,
1942, Serial No. 437,742
3 Claims. (Cl. 62—89)
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This invention relates to cooling apparatus and
has .for its object to provide a new and improved
device of ‘this description.
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device around the plate in engagement with the
?ange 4 and the part of the sheet with which the
?ange 4 engages.
.
The invention has as a further object to provide
a storage room or system for the articles to be
cooled, wherein there is a series of ?at thin plates
with coils in them, suspended in the storage room,
the coils being connected with a compressor, a
In between the sheets there is provided av pipe
5 which instead of being circular has its sides ?at
tened, as shown at 6 and ‘I. The sheets I and 2
engage these ?attened sides‘li and 1 so as to have
a large area of contact with the pipe, as will be
refrigerant material being circulated from the
seen by examining Fig. 2. Air is exhausted from
compressor through these coils and back to the 10 the chamber formed by the sheets I and 2 by ap
compressor.
plying an air exhausting device to the connec
The invention has as a further object to pro
tion or nipple 8 which is connected with the
vide a cooling apparatus consisting of a compara
space between the sheets i and 2. This connec
tively thin plate made of sheets of metal hermeti
tion or nipple may be of any desired form. I
cally sealed, with a pipe therein formed into a
have illustrated in Fig. 3 a simple form for this
:coil and'having ?at sides which engage the sheets
purpose wherein the nipple has an end 9 which
of metal, air being exhausted from between the
projects through the wall 3 and into the space
sheets to cause the atmosphere on the outside to
between the sheets I and 2. This nipple has a
press them tightly against the pipe.
recess ID which is threaded at one end to receive
The invention has further objects which are 20 the threaded plug II. Within this recess is a
more particularly pointed out in the accompany’
valve I2, shown as a ball. There is a passageway
ing description.
l3 connecting the recess H) with the interior of
This is a divisional case taken from my original
the plate and the valve l2 controls this passage
application Serial Number 262,910, ?led March
way.
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20, 1939.
25
When it is desired to exhaust the air from the
Referring now to the drawings,
interior of the plate, the plug II is removed and
Fig. 1 is a side elevation of one form of device
embodying the invention and illustrating the ?rst
plate of a series;
a connection is made with an air exhausting de- .
vice.
When the proper amount of air is ex
hausted, the air exhausting device is disconnected
Fig. 2 is a sectional view on an enlarged scale, 30 from the nipple, the Valve I2 maintaining the
with parts omitted, taken along the line 2-—2 of
vacuum in the plate. The plug H is then prefer
Fig. 1;
Fig. 3 is a sectional view through the nippl
used for exhausting air from the plate;
a
Fig. 4 is a horizontal section showing diagram
matically a locker room provided with the cooling
plates;
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Fig. 5 is a view showing means of connecting
ably sealed so as to insure the maintenance of
the vacuum. when air is exhausted from be
tween sheets I and 2, the pressure of the outside
atmosphere presses these sheets tightly against
the ?at portions 6 and l of the pipe 5, so as to
secure and maintain an intimate contact with
this pipe.
An eutectic solution of any of the usual
the cooling plates in series.
types 8a may be used to partially ?ll the Space
Like numerals refer to like parts throughout 40 between the plates l and 2 (see Fig. 2). The
the several ?gures.
plates may be used with or without the eutectic,
Referring now to the drawings, there is illus
which may be a salt solution.
*
trated a cooling plate made up of sheets I and 2
When the device is in use a refrigerant is passed '
of metal, the sheets being fastened together so
through the pipe 5. This refrigerant may enter
as to form a chamber which will be hermetically 45 the pipe by means of the inlet l4 and be dis
sealed. One of the constructions for this purpose
charged from the pipe by means of the outlet I5.
is herein shown wherein one of the sheets, such,
The inlet and outlet are connected to any suitable
for example, as the sheet 2, has its edge bent at
refrigerating machine or apparatus and any de-'
an angle to its face all the way around, to provide
sired refrigerant material may be passed through
the wall 3 extending all the way around, this wall 50 the pipe 5.
having a ?ange 4 preferably integral therewith,
This construction provides a large area of con
which engages the sheet I. The ?ange is her
tact between the pipe of the coil and the sheets
metically sealed to this plate in any desired man
of metal, so as to increase the cooling ei?ciency
ner, as by welding. The welding is preferably
of the device and also provides a thin cooling de
done electrically by running an electric welding
vice and at the same time increases its e?lciency,
2,405,432
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This construction is particularly adapted for
these passageways are entered do not communi
cate with the outside atmosphere or with any
warm atmosphere. By means of this arrange
use in storage lockers in locker storage rooms.
In Fig. 4 I have shown one form of locker room
provided with the cooling plates. In this con
ment, the parties renting the lockers may enter
struction there are a series of the vacuum plates
the main room and then may pass through one
la, which may be supported in any desired man
of the doors 3a into the passagewayopl'wsite their
ner, preferably from the ceiling. " These plates
lockers and can remove whatever food desired and
take it home.
are the plates illustrated in Fig. l, and they are‘
connected in this particular construction in s‘e-» 7ries. I have only attempted to show more or-less
diagrammatically one form of locker roam." In
this construction there are a-series vof lockerroom
> a By means of this construction the food in the _
lockerv may be maintained in a frozen condition
fora long period and until it is removed them
from.
corridors 2a, 2b, etc., from which the’ material to
.
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I claim:
1. A cooling system comprising a storage room
be cooled is placed in any suitable lockers. The
cooling plates la are preferably located atthe 15 for the articles to be cooled a plurality of food
ceiling, that is, suspended'fr‘om the ceiling, and ; receiving lockers in said room, a passageway be
tween the lockers by means of which the users
secure access to said lockers, a plurality of cooling
there are doors 3a, as shown, for access to the
locker rooms. I have illustrated an entrance 4a
to the main room with‘ a passageway 5a along
plates supported in said storage room exterior to
the side, the doors 3a for the locker rooms com 20 said lockers, said cooling plates each consisting
of imperforate sheets of metal connected together,
municating with this passageway .so that there
with a coil therein having ?at sides whichare
is no access to the locker rooms or the room 6a
tightly engaged by said sheets, the coils‘ in said
directly from the outside of the main room. The
several plates being connected in series, and
connection of the cooling plates in series is illus
trated in Fig. 5, wherein the ?rst plate of the se 25 means for supplying a refrigerant to the coil in
the first plate of the series and for circulating it
ries la is connected by a pipe I‘! with the expan
successively through the coils in the remaining
sion valve 18.‘ The expansion valve is connected
plates of the series, the plates being so construct
by a pipe IS with the liquid line 20 from the com
ed and arranged that the opposite sides of each
pressor. The ends of the coils in the several
cooling plates are connected together by the pipes 30 plate are in contact with the air in the storage
2|, 22, 23, 24 and 25. The last cooling plate la
2. A cooling system comprising a storage room
is connected tothe suction line 26, which‘ leads
back to the compressor. It will be noted that
for the articles to be cooled, said room having a
plurality of corridors with lockers lining said ‘cor
this construction connects all the coils in the
plates in series. The usual automatic device for 35 ridors, a plurality of cooling plates suspended in
the upper part of said storage room, in groups
closing the expansion valve 18 is used, which con
arranged in the upper portions of said corridors,
sists of a bulb 21 connected to a pipe 28 and which
each said cooling plate consisting of imperforate
leads to the valve 18. When the temperature
sheets of metal connected together and sealed to
lowers below a predetermined point, this bulb acts
tocause the expansion valve to close and when 40 form a hermetically sealed space between them,
room.
.
the , temperature rises .above a predetermined
a coil through which refrigerant material is
point, it acts to cause the. expansion valve to
passed, located in each‘ said plate, the plates lying
open.
in vertical planes extendinglongitudinally along
I
and in vertical alignment with said corridors, the
In Figure 5 is diagrammatically illustrated a
refrigerating cycle in which the cold plates la
l sheets of each plate being held in intimate en
gagement with the sides of the coils in said plate,
are included. I illustrate for example a com
pressor 50 actuated by a motor 5|. 52 indicates
and means for circulating refrigerant material
any suitable condenser and -53 any suitable re
ceiver. It will be understood that, any suitable
through-the coils of said plates, the plates being
so constructed and arranged that the opposite
50 sides of each plate are incontact with‘ the air in
refrigerating unit may be employed, the mechan
ical structure herein illustrated being for the pur
the storage-room.
follows:
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3. A cooling system comprising a storage room
for the articles to be cooled, said room having a
plurality of; corridors with lockers lining said cor
pose of illustration.
The use and operation of my invention are as
.
; ,In carrying out the invention, the lockers la 55 riders, a plurality of cooling plates suspended'in
the upper part of said storage room, in groups
contain the food which is in a frozen condition.
arranged in the upper portions of said corridors,
The COOIiIlg plates la are preferably placedon
each said cooling plate consisting‘ of imperforate
opposite sides of these lockers, the lockers being
sheets of metal connected together and sealedvv to
arranged so that the cold air can enter and'pass
form a hermetically sealed space betweengthem,
ther'ethrough so as to come into contact with the ,
frozen foods and maintain such‘ frozen foods in a '
means
frozen condition. The plates‘ la are supported
from the roof and there is a passageway beneath
through said plates, the plates lyinginyertical
planes extending longitudinally and ‘in vertical
them entered by means of the doors 3a.
for
circulating
a volatile , refrigerant
alignment with said corridors, the platesbeing so
The par
ties, owning the lockers pass through ‘these doors
65
constructed and arranged that the opposite sides
into the passagewayropposite their particular ‘ ‘
of each plate are in contact with the air in the
lockers sothat they can enter the lockers and re
storage room.
movelthe frozen food.
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_ It will be noted that thedoors through which
" HERMAN W.‘ men
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