US3650122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular refrigeration unit
Assignee: Computed Living Space Inc
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Filing: 1970-01-15
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Granted: 1972-03-21
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Expires: 1990-01-15
Abstract
Abstract A modular refrigeration unit containing a complete refrigeration system is removably mounted in an insulated holding chamber. The holding chamber and refrigeration unit are formed of polyurethane in a stressed skinned construction and a closed air flow cycle is provided between the interior of the holding chamber and the evaporator of the refrigeration system to continuously maintain a relatively low temperature within the chamber.
Inventors
- 👤 Aharon Lieberman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:09
CPC Classifications
F; F25; F25D; F25D19/00; A; A47; A47B; A47B77/00; A47B77/04; A47B77/08; F25D2400/00; F25D2400/16
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
71 words
A modular refrigeration unit comprising, an enclosed thermally insulated holding box having a selectively openable door member forming a portion of the box for providing access to the interior thereof and a self-contained mechanical refrigeration unit readily removably mounted within the interior of said holding box, said refrigeration unit including an enclosed thermally insulated container and means within said container for cooling and circulating ambient air present in said holding box.
Claim 2
Dependent Claim
71 words
A modular refrigeration unit comprising, an enclosed thermally insulated holding box having a selectively openable door member forming a portion of the box for providing access to the interior thereof and a self-contained mechanical refrigeration unit readily removably mounted within the interior of said holding box, said refrigeration unit including an enclosed thermally insulated container and means within said container for cooling and circulating ambient air present in said holding box.
Claim 3
Dependent Claim
31 words
A modular refrigeration unit as defined in claim 1 wherein the walls and door of said enclosed holding box are formed of polyurethane and have hardened surfaces and foamed inner cores.
Claim 4
Dependent Claim
15 words
A modular refrigeration unit as defined in claim 2 wherein said box is injection molded.
Claim 5
Dependent Claim
45 words
A modular refrigeration unit as defined in claim 1 wherEin said cooling and circulating means comprises, means entirely within the confines of said container defining a refrigerant flow path including a condenser, compressor, evaporator and expansion nozzle, for cooling the interior of said holding box.
Claim 6
Dependent Claim
26 words
A modular refrigeration unit as defined in claim 4 wherein said container is generally rectangular and is formed of a pair of elongated generally L-shaped members.
Claim 7
Dependent Claim
64 words
A modular refrigeration unit as defined in claim 5 wherein said evaporator is mounted in the upper portion of one of said L-spaced members, said condenser is mounted in the base of said container and said compressor is mounted above said condenser and beneath said evaporator whereby relatively short refrigerant flow path sections are provided between the elements of said cooling and circulating means.
Claim 8
Dependent Claim
41 words
A device as defined in claim 6 wherein said cooling and circulating means includes a first fan for drawing air from within said holding box over said evaporator for cooling said air and for returning said cooled air to said box.
Claim 9
Dependent Claim
47 words
A device as defined in claim 7 wherein said cooling and circulating means further includes a second fan, thermally isolated from said first fan, and adapted to draw ambient air from outside said box through said condenser and over said compressor to cool said condenser and compressor.
Claim 10
Dependent Claim
76 words
A modular refrigeration unit adapted to be removably mounted within a thermally insulated holding box comprising, an enclosed container formed by a stressed skin construction defining an enclosed chamber, and means entirely contained within said chamber for refrigerating said holding box, said refrigeration means including compressor, condenser, expansion nozzle, evaporator, and conduit means constructed and arranged to define a flow path for refrigerant in said refrigeration means whereby the interior of said holding box is cooled.
Claim 11
Dependent Claim
76 words
A modular refrigeration unit adapted to be removably mounted within a thermally insulated holding box comprising, an enclosed container formed by a stressed skin construction defining an enclosed chamber, and means entirely contained within said chamber for refrigerating said holding box, said refrigeration means including compressor, condenser, expansion nozzle, evaporator, and conduit means constructed and arranged to define a flow path for refrigerant in said refrigeration means whereby the interior of said holding box is cooled.
Claim 12
Dependent Claim
23 words
A refrigeration unit as defined in claim 9 including means resiliently mounting said compressor in said container to absorb the attendant vibrations thereof.
Claim 13
Dependent Claim
51 words
A refrigeration unit as defined in claim 10 wherein said condenser is mounted in the base of said container below said compressor and said system further includes means for drawing ambient air into said container to cool said condenser and said compresser and for discharging the warmed air from said container.
Claim 14
Dependent Claim
45 words
A refrigeration unit as defined in claim 11 wherein said container includes means, thermally isolated from said drawing and discharge means, for continuously drawing air within said holding box over said evaporator and returning said air to said box in a closed air circulation cycle.
Claim 15
Dependent Claim
74 words
A refrigeration unit as defined in claim 12 wherein said compressor includes a thermally conductive outer shell and a watertight channel means mounted on the periphery of said shell, said evaporator including a heater element adapted to periodically defrost ice forming on said evaporator, and means for conducting the resulting liquid from said evaporator to said channel whereby said liquid cools said compressor, is vaporized, and discharged from said container with said warmed air.
References Cited (Backward Citations)
US2529203A
Cited
US2561278A
Cited
US2727363A
Cited
US2751760A
Cited
US2758449A
Cited
US2943455A
Cited
US2939297A
Cited
US3156102A
Cited
US3433031A
Cited
US3474640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |