US2084883A - Refrigerating apparatus - Google Patents
Refrigerating apparatus Download PDFInfo
- Publication number
- US2084883A US2084883A US7682A US768235A US2084883A US 2084883 A US2084883 A US 2084883A US 7682 A US7682 A US 7682A US 768235 A US768235 A US 768235A US 2084883 A US2084883 A US 2084883A
- Authority
- US
- United States
- Prior art keywords
- moisture
- inner liner
- wall
- partition
- thermal insulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009413 insulation Methods 0.000 description 33
- 238000005192 partition Methods 0.000 description 29
- 238000001816 cooling Methods 0.000 description 23
- 239000002184 metal Substances 0.000 description 10
- 235000013305 food Nutrition 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 240000008415 Lactuca sativa Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000012045 salad Nutrition 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S62/00—Refrigeration
- Y10S62/13—Insulation
Definitions
- My invention relates to refrigerating apparatus for cooling foods and the like, and more particularly to such refrigerating apparatus for the open display of foods.
- refrigerating apparatus such as refrigerator cabinets, food display trays and the like
- refrigerating apparatus such as refrigerator cabinets, food display trays and the like
- This construction leads to one disadvantage in that moisture is condensed and frozen on the refrigerating element within the wall, and when this element is defrosted the moisture runs into the insulation which damages the same.
- Another object of my invention is to provide a simple and easily constructed arrangement for preventing the condensation of moisture within the thermal insulation of refrigerator cabinets.
- FIG. 1 is a perspective view partly in section of a refrigerated trayembodying my invention
- Fig. 2 is an enlarged sectional view of a portion of the tray shown in Fig. 1.
- a refrigerated tray for salads or other food articles on display in cafeteras, stores, and the like which comprises an outer metal wall I0 and an inner metal liner I I Vforming the bottom and side walls of the space to be cooled.
- the wall I0 and the liner I I ' are spaced apart and secured together by a strip I2 of moisture impervious thermally Il extending outside the outer wall I0 for connection with a refrigerating machine arranged to supply refrigerant to the conduit and withdraw vaporized refrigerant therefrom.
- the tray is provided with a body of thermal insulation I8 pervious to moisture and arranged between the outer wall I0 and a partition I9, which provides an air chamber
- the partition I9 is secured to the inner liner by the screws Ill and is separated from the inner liner by a strip 20 of heat insulating material which minimizes the flow of heat between the partition and the inner liner.
- the partition I9 thus presents an unobstructed surface constituting a drip-pan extending entirely over the portion of the thermal insulation I8 located below the cooling element I5. It will be readily understood that during the operation of the cooling element I5 any moisture contained in the air within the chamber surrounding the element will be condensed on the conduit and frozen.
- I provide a plurality of openings 2I and 22 in the side wall of the partition I9.
- the evaporator conduit I5 cools the bottom of the tray and articles placed thereon.
- refrigerant is first introduced into the evaporator conduit I5 the air in the chamber I9a is cooled and the moisture therein condenses and freezes on the conduit I5 and, since the air within the thermal insulation I8 is also in communication with the chamber I9a, moisture in the thermal insulation will also be drawn out and frozen on the conduit.
- the conduit is defrosted moisture will drop to the bottom of the drip-pan partition I9 and will drain out through a connection 23 provided for the purpose. It is, therefore, evident that the condensed moisture removed from the conduit I5 upon defrosting does not accumulate in the thermal insulation. The thermal insulation therefore, not affected by this moisture and is not deteriorated.
- a refrigerating apparatus including a metal outer wall and a metal inner liner providing a space to'be cooled, means including a strip of thermally resistant material for lconnecting said outer wall and said inner liner, means including a metal partition arranged between said outer wall and said inner liner for providing an air chamber adjacent said inner liner, means including a strip of thermally resistant material for minimizing the transfer of heat between said partition and said inner liner, thermal insulation pervious to moisture arranged between said partition and said outer wall, means including a refrigerant evaporator in said chamber in heat exchange relationship to said inner liner for cooling said space to be cooled, means including openings in said partition for conveying moisture-laden air from the interior of said thermal insulation to said chamber wherein the moisture is condensed by said evaporator, said partition presenting an unobstructed surface constituting a drip-pan extending entirely over the portion of said thermal insulation located below said evaporator for accumulating condensed moisture dripping from said evaporator, and means for removing conden
- a refrigerating apparatus including an outer i wall and a metal inner liner, said inner liner forming a wall of a spacel to be cooled, means including a partition arranged between said outer wall and said inner liner for providing an air chamber adjacent said inner liner, means including a strip of thermally resistant material for minimizing the transfer of heat between said partition and said inner liner, thermal insulation per-v vious to moisture arranged between said partition and said outer wall, means including a refrigerant evaporator in heat exchange relationship with said inner liner for cooling said space to be cooled, means including openings in said partition for conveying moisture-laden air from the interior of said thermal insulation to said chamber wherein the moisture is condensed by said evaporator, said partition presenting an unobstructed surface constituting a drip-pan extending entirely over the portion of said thermal insulation located below said evaporator for accumulating condensed moisture dripping from said evaporator, and means for removing condensed moisture from said drip-pan.
- a refrigerating apparatus including an outer wall and a metal inner liner, said inner liner forming the Wall of a space to be cooled, thermal insulation pervious to moisture arranged within the space between said inner liner and said outer wall and having at least a portion thereof spaced from said inner liner to provide a chamber open to the outer surface f said inner liner, means for cooling said inner liner and for withdrawing from said insulation and accumulating on the surface of said inner liner exposed to said chamber moisture contained in said insulation, and means in said chamber for receiving all of the moisture dripping from the surface of said inner liner and for preventing said dripping moisture from coming into contact with said insulation, said last named means being arranged in said chamber to allow moisture contained in said insulation to be conveyed in contact with the surface of said inner liner exposed to said chamber.
- a refrigerating apparatus including an outer wall and a metal inner liner, said inner liner forming a wall of a space to be cooled, means including a partition arranged between said outer wall and said inner liner for providing an air chamber adjacent said inner liner, thermal insulation pervious to moisture arranged between said partition and said outer wall, means for cooling said inner liner, said partition being arranged z to allow moisture-laden air to be conveyed from the interior of said thermal insulation to said chamber wherein the moisture is condensed by said cooling means, said partition presenting an unobstructed surface constituting a drip-pan extending entirely over the portion of said thermal insulation located below said cooling means for receiving condensed moisture dripping from said cooling means, and means for removing condensed moisture from said 4drip-pan.
- a refrigerating apparatus including an outer wall and a metal inner liner, said inner liner forming a wall of a space to be cooled, means including a partition arranged between said outer wall and said inner liner for providing an air chamber adjacent said inner liner, thermal insulation pervious to moisture arranged between said partition and said'outer wall, means arranged in heat exchange relation with said innerliner for cooling the same, adjacent edges of said inner liner and said partition being secured together, and means including openings in said partition for conveying moisture-laden air from the interior of said thennal insulation to said chamber wherein the moisture is condensed by said cooling means, said partition presenting an unobstructed surface constituting a drip-pan located below said cooling means for accumulating moisture dripping from said inner line, and means for removing condensed moisture from said drip-pan.
- a refrigerated food display tray including an outer wall and an inner metal liner spaced from said wall, means including a partition arranged between said inner liner and said outer wall for providing an air chamber adjacent said inner liner, thermal insulation pervious to moisture arranged between said partition and said outer Wall, means for cooling said inner liner and articles placed therein, means including openings in said partition for conveying moisture-laden air from the interior of said thermal insulation to said chamber wherein the moisture is condensed by said cooling means, said partition presenting an unobstructed surface constituting a drip-pan extending entirely over the portion of said thermal insulation located belowsaid cooling means for accumulating condensed moisture dripping from said cooling means, and means for removing condensed moisture from said drip-pan.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Description
June 22, 1937. L.. w. ATcHlsoN REFRIGERATING APPARATUS Filed Feb. 23, 1955 Inventor: Leonovd W Atchison,
is Attorneg.
Patented June 22, 1937 PATENT OFFICE REFRIGERATING APPARATUS Leonard W. Atchison, Schenectady, N. Y., assignor to General Electric Company, a corporation of New York Application February 23,1935, serial No. 7,682
6 Claims.
My invention relates to refrigerating apparatus for cooling foods and the like, and more particularly to such refrigerating apparatus for the open display of foods.
It is frequently desirable to construct refrigerating apparatus such as refrigerator cabinets, food display trays and the like, by providing a Wall and a liner surrounding the space to be cooled, and a refrigerating element in contact with the liner within the insulated wall of the cabinet. This construction, however, leads to one disadvantage in that moisture is condensed and frozen on the refrigerating element within the wall, and when this element is defrosted the moisture runs into the insulation which damages the same. When the cooling element is again chilled more moisture will condense thereon since, unless the thermal insulation is hermetically sealed there will be breathing of air into the walls of the cabinet and, consequently, repeated defrosting operations will result in a considerable accumulation of moisture in the insulation, which reduces the thermal efficiency of the insulation and also produces rapid deterioration.
Accordingly, it is an object of my invention to provide a refrigerating apparatus having a cooling element or evaporator arranged between the inner liner and the outer wall thereof, and which is so constructed that the deterioration of the thermal insulation due to condensation of moisture on the cooling element is prevented.
Another object of my invention is to provide a simple and easily constructed arrangement for preventing the condensation of moisture within the thermal insulation of refrigerator cabinets.
Further objects and advantages of my invention will become apparent as the following description proceeds and the features of novelty which characterize my invention will be pointed out with particularity in the claims annexed to and forming a part of this specification.
For a better understanding of my invention reference may be had to the accompanying drawing in which Fig. 1 is a perspective view partly in section of a refrigerated trayembodying my invention, and Fig. 2 is an enlarged sectional view of a portion of the tray shown in Fig. 1.
Referring now to Figs. 1 and 2, I have shown a refrigerated tray for salads or other food articles on display in cafeteras, stores, and the like, which comprises an outer metal wall I0 and an inner metal liner I I Vforming the bottom and side walls of the space to be cooled. The wall I0 and the liner I I 'are spaced apart and secured together by a strip I2 of moisture impervious thermally Il extending outside the outer wall I0 for connection with a refrigerating machine arranged to supply refrigerant to the conduit and withdraw vaporized refrigerant therefrom. The tray is provided with a body of thermal insulation I8 pervious to moisture and arranged between the outer wall I0 and a partition I9, which provides an air chamber |911. between the same and the inner liner II and surrounding the cooling element I5. The partition I9 is secured to the inner liner by the screws Ill and is separated from the inner liner by a strip 20 of heat insulating material which minimizes the flow of heat between the partition and the inner liner. The partition I9 thus presents an unobstructed surface constituting a drip-pan extending entirely over the portion of the thermal insulation I8 located below the cooling element I5. It will be readily understood that during the operation of the cooling element I5 any moisture contained in the air within the chamber surrounding the element will be condensed on the conduit and frozen. In order to afford breathing of air between the thermal insulation I8 and the air chamber I9a, I provide a plurality of openings 2I and 22 in the side wall of the partition I9.
During operation of the refrigerated tray shown the evaporator conduit I5 cools the bottom of the tray and articles placed thereon. When refrigerant is first introduced into the evaporator conduit I5 the air in the chamber I9a is cooled and the moisture therein condenses and freezes on the conduit I5 and, since the air within the thermal insulation I8 is also in communication with the chamber I9a, moisture in the thermal insulation will also be drawn out and frozen on the conduit. When the conduit is defrosted moisture will drop to the bottom of the drip-pan partition I9 and will drain out through a connection 23 provided for the purpose. It is, therefore, evident that the condensed moisture removed from the conduit I5 upon defrosting does not accumulate in the thermal insulation. The thermal insulation therefore, not affected by this moisture and is not deteriorated.
From the foregoing it is apparent that I have provided a. simple and easily constructed arrangement for preventing the collection of moisture and deterioration of vthe thermal insulation of a cooling apparatus.
While I have shown my invention as applied to a cooling tray, other applications will readily be apparent to those skilled in the art. I do not, therefore desire my invention to `be limited to the particular construction shown and described and I intend in the appended claims to cover al1 modifications within the spirit and scope of my invention.
What I claim as new and desire to secure by Letters Patent of the United States, is:-
1. A refrigerating apparatus including a metal outer wall and a metal inner liner providing a space to'be cooled, means including a strip of thermally resistant material for lconnecting said outer wall and said inner liner, means including a metal partition arranged between said outer wall and said inner liner for providing an air chamber adjacent said inner liner, means including a strip of thermally resistant material for minimizing the transfer of heat between said partition and said inner liner, thermal insulation pervious to moisture arranged between said partition and said outer wall, means including a refrigerant evaporator in said chamber in heat exchange relationship to said inner liner for cooling said space to be cooled, means including openings in said partition for conveying moisture-laden air from the interior of said thermal insulation to said chamber wherein the moisture is condensed by said evaporator, said partition presenting an unobstructed surface constituting a drip-pan extending entirely over the portion of said thermal insulation located below said evaporator for accumulating condensed moisture dripping from said evaporator, and means for removing condensed moisture from said drip-pan.
2. A refrigerating apparatus including an outer i wall and a metal inner liner, said inner liner forming a wall of a spacel to be cooled, means including a partition arranged between said outer wall and said inner liner for providing an air chamber adjacent said inner liner, means including a strip of thermally resistant material for minimizing the transfer of heat between said partition and said inner liner, thermal insulation per-v vious to moisture arranged between said partition and said outer wall, means including a refrigerant evaporator in heat exchange relationship with said inner liner for cooling said space to be cooled, means including openings in said partition for conveying moisture-laden air from the interior of said thermal insulation to said chamber wherein the moisture is condensed by said evaporator, said partition presenting an unobstructed surface constituting a drip-pan extending entirely over the portion of said thermal insulation located below said evaporator for accumulating condensed moisture dripping from said evaporator, and means for removing condensed moisture from said drip-pan.
3. A refrigerating apparatus including an outer wall and a metal inner liner, said inner liner forming the Wall of a space to be cooled, thermal insulation pervious to moisture arranged within the space between said inner liner and said outer wall and having at least a portion thereof spaced from said inner liner to provide a chamber open to the outer surface f said inner liner, means for cooling said inner liner and for withdrawing from said insulation and accumulating on the surface of said inner liner exposed to said chamber moisture contained in said insulation, and means in said chamber for receiving all of the moisture dripping from the surface of said inner liner and for preventing said dripping moisture from coming into contact with said insulation, said last named means being arranged in said chamber to allow moisture contained in said insulation to be conveyed in contact with the surface of said inner liner exposed to said chamber. 4. A refrigerating apparatus including an outer wall and a metal inner liner, said inner liner forming a wall of a space to be cooled, means including a partition arranged between said outer wall and said inner liner for providing an air chamber adjacent said inner liner, thermal insulation pervious to moisture arranged between said partition and said outer wall, means for cooling said inner liner, said partition being arranged z to allow moisture-laden air to be conveyed from the interior of said thermal insulation to said chamber wherein the moisture is condensed by said cooling means, said partition presenting an unobstructed surface constituting a drip-pan extending entirely over the portion of said thermal insulation located below said cooling means for receiving condensed moisture dripping from said cooling means, and means for removing condensed moisture from said 4drip-pan.
5. A refrigerating apparatus including an outer wall and a metal inner liner, said inner liner forming a wall of a space to be cooled, means including a partition arranged between said outer wall and said inner liner for providing an air chamber adjacent said inner liner, thermal insulation pervious to moisture arranged between said partition and said'outer wall, means arranged in heat exchange relation with said innerliner for cooling the same, adjacent edges of said inner liner and said partition being secured together, and means including openings in said partition for conveying moisture-laden air from the interior of said thennal insulation to said chamber wherein the moisture is condensed by said cooling means, said partition presenting an unobstructed surface constituting a drip-pan located below said cooling means for accumulating moisture dripping from said inner line, and means for removing condensed moisture from said drip-pan.
6. A refrigerated food display tray including an outer wall and an inner metal liner spaced from said wall, means including a partition arranged between said inner liner and said outer wall for providing an air chamber adjacent said inner liner, thermal insulation pervious to moisture arranged between said partition and said outer Wall, means for cooling said inner liner and articles placed therein, means including openings in said partition for conveying moisture-laden air from the interior of said thermal insulation to said chamber wherein the moisture is condensed by said cooling means, said partition presenting an unobstructed surface constituting a drip-pan extending entirely over the portion of said thermal insulation located belowsaid cooling means for accumulating condensed moisture dripping from said cooling means, and means for removing condensed moisture from said drip-pan.
LEONARD W. ATCHISON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7682A US2084883A (en) | 1935-02-23 | 1935-02-23 | Refrigerating apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7682A US2084883A (en) | 1935-02-23 | 1935-02-23 | Refrigerating apparatus |
Publications (1)
Publication Number | Publication Date |
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US2084883A true US2084883A (en) | 1937-06-22 |
Family
ID=21727567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US7682A Expired - Lifetime US2084883A (en) | 1935-02-23 | 1935-02-23 | Refrigerating apparatus |
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2515367A (en) * | 1948-10-20 | 1950-07-18 | Veronica M Booker | Cooling tray for beverage glasses and the like |
US2555425A (en) * | 1949-05-06 | 1951-06-05 | Stern Morris | Combination beverage display and refrigerating unit |
US2586225A (en) * | 1948-05-21 | 1952-02-19 | Carlyle E Hartman | Cold wall refrigerator with openmesh produce containers |
US2639593A (en) * | 1944-11-06 | 1953-05-26 | Electrolux Ab | Refrigerator insulation |
US2703442A (en) * | 1948-09-22 | 1955-03-08 | Nash Kelvinator Corp | Refrigerator door |
US3003326A (en) * | 1961-10-10 | figure | ||
US3006158A (en) * | 1959-11-09 | 1961-10-31 | Gen Electric | Refrigerator cabinet construction |
US3034316A (en) * | 1959-11-12 | 1962-05-15 | Gen Electric | Refrigerator construction |
US3083002A (en) * | 1958-10-09 | 1963-03-26 | Rohr Corp | Refrigerated chuck and method for holding workpiece |
US3832862A (en) * | 1972-10-24 | 1974-09-03 | G Ingels | Laboratory refrigeration apparatus |
US4306616A (en) * | 1980-02-04 | 1981-12-22 | Duke Manufacturing Co. | Refrigerated shelf for a food display counter |
US4615183A (en) * | 1985-06-24 | 1986-10-07 | The United States Of America As Represented By The Department Of Health And Human Services | Cold plate for laboratory use |
FR2633375A1 (en) * | 1988-06-27 | 1989-12-29 | Severini Bruno | Transportable and dismantleable refrigerating device for market stalls |
US20080053111A1 (en) * | 2006-08-29 | 2008-03-06 | The Delfield Company Llc. | Method and apparatus for controlling temperature of a freeze plate |
US8850829B2 (en) | 2012-01-10 | 2014-10-07 | Spring (U.S.A.) Corporation | Heating and cooling unit with semiconductor device and heat pipe |
US9909789B2 (en) | 2012-01-10 | 2018-03-06 | Spring (U.S.A.) Corporation | Heating and cooling unit with canopy light |
USD811802S1 (en) | 2016-07-15 | 2018-03-06 | Spring (U.S.A.) Corporation | Food server |
-
1935
- 1935-02-23 US US7682A patent/US2084883A/en not_active Expired - Lifetime
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3003326A (en) * | 1961-10-10 | figure | ||
US2639593A (en) * | 1944-11-06 | 1953-05-26 | Electrolux Ab | Refrigerator insulation |
US2586225A (en) * | 1948-05-21 | 1952-02-19 | Carlyle E Hartman | Cold wall refrigerator with openmesh produce containers |
US2703442A (en) * | 1948-09-22 | 1955-03-08 | Nash Kelvinator Corp | Refrigerator door |
US2515367A (en) * | 1948-10-20 | 1950-07-18 | Veronica M Booker | Cooling tray for beverage glasses and the like |
US2555425A (en) * | 1949-05-06 | 1951-06-05 | Stern Morris | Combination beverage display and refrigerating unit |
US3083002A (en) * | 1958-10-09 | 1963-03-26 | Rohr Corp | Refrigerated chuck and method for holding workpiece |
US3006158A (en) * | 1959-11-09 | 1961-10-31 | Gen Electric | Refrigerator cabinet construction |
US3034316A (en) * | 1959-11-12 | 1962-05-15 | Gen Electric | Refrigerator construction |
US3832862A (en) * | 1972-10-24 | 1974-09-03 | G Ingels | Laboratory refrigeration apparatus |
US4306616A (en) * | 1980-02-04 | 1981-12-22 | Duke Manufacturing Co. | Refrigerated shelf for a food display counter |
US4615183A (en) * | 1985-06-24 | 1986-10-07 | The United States Of America As Represented By The Department Of Health And Human Services | Cold plate for laboratory use |
FR2633375A1 (en) * | 1988-06-27 | 1989-12-29 | Severini Bruno | Transportable and dismantleable refrigerating device for market stalls |
US20080053111A1 (en) * | 2006-08-29 | 2008-03-06 | The Delfield Company Llc. | Method and apparatus for controlling temperature of a freeze plate |
US8850829B2 (en) | 2012-01-10 | 2014-10-07 | Spring (U.S.A.) Corporation | Heating and cooling unit with semiconductor device and heat pipe |
US9416995B2 (en) | 2012-01-10 | 2016-08-16 | Spring (U.S.A.) Corporation | Heating and cooling unit with semiconductor device and heat pipe |
US9909789B2 (en) | 2012-01-10 | 2018-03-06 | Spring (U.S.A.) Corporation | Heating and cooling unit with canopy light |
USD811802S1 (en) | 2016-07-15 | 2018-03-06 | Spring (U.S.A.) Corporation | Food server |
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