US3078688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration
Assignee: Motors Liquidation Co
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Filing: 1961-12-06
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Granted: 1963-02-26
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Expires: 1981-12-06
Abstract
No abstract record available.
Inventors
- 👤 Carl F Petkwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:05
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
353 words
IN COMBINATION: (A) A REFRIGERATOR CABINET PROVIDED WITH A FIRST INSULATED FOOD STORAGE CHAMBER AND A SECOND INSULATED CHAMBER THEREIN SEPARETE FROM SAID FIRST CHAMBER. (B) A REFRIGERATING SYSTEM ASSOCIATED WITH SAID CABINET INCLUDING A REFRIGERANT TRANSLATING MECHANISM AND REFRIGERANT EVAPORATING MEANS CONNECTED TO CLOSED REFRIGERANT EVAPORATING MEANS CONNECTED IN CLOSED REFRIGERANT CIRCULATING RELATIONSHIP WITH ONE ANOTHER, (C) SAID REFIRGERANT EVAPORATING MEANS CHILLING AIR IN SAID FIRST CHAMBER TO A TEMPERATURE ABOVE 32* F. AND COOLING SAID SECOND CHAMBER TO A TEMPERATURE WELL BELOW 32* F. FOR THE STORAGE OF FROZEN FOODS THEREIN, (D) WALLS FORMING A COMPARTMENT WITHIN SAID CABINET AT LEAST SOME OF WHICH WALLS ARE EXPOSED TO THE CHILLED AIR IN SAID FIRST FOOD STORAGE CHAMBER FOR NIRMALLY COOLING THE INTERIOR OF SAID COMPARTMENT TO A PREDETERMINED TEMPERATURE INTERMEDIATE THE TEMPERATURE WITHIN THE FIRST CHAMBER AND TEMPERATURES AMBIENT SAID CABINET, (E) SAID COMPARTMENT BEING ADAPTED TO RECEIVE FROZEN FOOD FROM SAID SECOND BELOW 32*. F. TEMPERATURED CHAMBER, (F) A DRAIN CONDUIT LEADING FROM SAID COMPARTMENT BEYOND THE INSULATION IN SAID CABINET, (G) SAID WALLS CLOSING SAID COMPARTMENT TO CONFINE FROZEN FOOD REMOVED FROM SAID SECOND CHAMBER, AND PLACED IN THE COMPARTMENT OUT OF COMMUNICATION WITH CHILLED AIR IN SAID FIRST FOOD STORAGE CHAMBER, (H) MEANS FOR WARMING FROZEN FOOD RECEIVED AND CONFINED IN SAID COMPARTMENT TO A TEMPERATURE ABOVE SAID NORMAL PREDETERMINED INTERMEDIATE TEMPERATURE THEREIN FOR THAWING SAID FROZEN FOOD, (I) SAID WARMING MEANS BEING RENDERED EFFECTIVE AUTOMATICALLY IN RESPONSE TO PLACING THE FROZEN FOOD INTO SAID COMPARTMENT AND RENDERED INEFFECTIVE AUTOMATICALLY IN RESPONSE TO A THAWED CONDITION THEREOF WHEREBY THE THAWED FOOD IS THEREAFTER STORED WITHIN THE REFRIGERATOR CABINET, REFRIGERATED AND PRESERVED IN THE COMPARTMENT THEREIN AT SAID NORMAL PREDETERMINED INTERMEDIATE TEMPERATURE. (J) THE BOTTOM WALL OF SAID COMPARTMENT BEING PROVIDED WITH RAISED PORTIONS SUPPORTING THE FROZEN FOOD AT A PLURALITY OF SPACED-APART POINTS THEREABOVE TO EXPOSE THE LOWERMOST PART OF THE FOOD TO SAID WARMING MEANS FOR THAWING SAID FOOD UNIFORMLY THROUGHOUT ITS ENTIRE BODY, AND (K) SAID COMPARTMENT BOTTOM WALL DIRECTING CONDENSATE WATER FLOWING FROM THE FOOD AS A RESULT OF THAWING SAME TO SAID DRAIN CONDUIT.
References Cited (Backward Citations)
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US2238635A
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US2311446A
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US2363375A
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US2912834A
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US3021688A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |