Patent US3301000A successfully refreshed from Google Patents.
US3301000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination vapor compression and absorption refrigeration system
Assignee: Borg Warner Corp
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Filing: 1965-02-15
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Granted: 1967-01-31
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Expires: 1985-02-15
Abstract
No abstract record available.
Inventors
- 👤 Holbay Nicholas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:32
CPC Classifications
F; F25; F25B; F25B25/00; F25B25/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A REFRIGERATION SYSTEM COMPRISING A COMPRESSOR, A CONDENSER, AND AN EVAPORATOR CONNECTED TO PROVIDE A REFRIGERATION CIRCUIT; A FIRST HEAT EXCHANGER IN HEAT TRANSFER RELATION WITH SAID EVAPORATOR; AN ABSORPTION REFRIGERATION MACHINE HAVING A GENERATOR, A CONDENSER, AN EVAPORATOR, AND AN ABSORBER CONNECTED TO PROVIDE A CLOSED, CONTINUOUS CYCLE REFRIGERATION CIRCUIT; A SECOND HEAT EXCHANGER IN HEAT TRANSFER RELATION WITH REFRIGERANT IN SAID ABSORPTION MACHINE EVAPORATOR; MEANS FOR CIRCULATING A HEAT EXCHANGE MEDIUM TO AND FROM A COOLING LOAD THROUGH SAID FIRST AND SECOND HEAT EXCHANGERS; A STEAM TURBINE DRIVING SAID COMPRESSOR; MEANS FOR CONDUCTING STEAM IN SERIES FLOW TO SAID TURBINE AND IN HEAT EXCHANGE RELATION WITH DILUTE ABSORBENT SOLUTION IN SAID GENERATOR; FIRST CAPACITY CONTROL MEANS INCLUDING MEANS FOR ALTERING THE FLOW OF REFRIGERANT GAS FROM SAID EVAPORATOR TO SAID COMPRESSOR; AND SECOND CAPACITY CONTROL MEANS INCLUDING VALVE MEANS RESPONSIVE TO THE TEMPERATURE OF THE HEAT EXCHANGE MEDIUM RETURNING FROM SAID LOAD FOR VARYING THE FLOW OF STEAM TO SAID TURBINE, WHEREBY THE ROTATIONAL SPEED OF SAID TURBINE IS REGULATED IN RESPONSE TO CHANGES IN THE COOLING LOAD.
Claim 2
Dependent Claim
180 words
A REFRIGERATION SYSTEM COMPRISING A COMPRESSOR, A CONDENSER, AND AN EVAPORATOR CONNECTED TO PROVIDE A REFRIGERATION CIRCUIT; A FIRST HEAT EXCHANGER IN HEAT TRANSFER RELATION WITH SAID EVAPORATOR; AN ABSORPTION REFRIGERATION MACHINE HAVING A GENERATOR, A CONDENSER, AN EVAPORATOR, AND AN ABSORBER CONNECTED TO PROVIDE A CLOSED, CONTINUOUS CYCLE REFRIGERATION CIRCUIT; A SECOND HEAT EXCHANGER IN HEAT TRANSFER RELATION WITH REFRIGERANT IN SAID ABSORPTION MACHINE EVAPORATOR; MEANS FOR CIRCULATING A HEAT EXCHANGE MEDIUM TO AND FROM A COOLING LOAD THROUGH SAID FIRST AND SECOND HEAT EXCHANGERS; A STEAM TURBINE DRIVING SAID COMPRESSOR; MEANS FOR CONDUCTING STEAM IN SERIES FLOW TO SAID TURBINE AND IN HEAT EXCHANGE RELATION WITH DILUTE ABSORBENT SOLUTION IN SAID GENERATOR; FIRST CAPACITY CONTROL MEANS INCLUDING MEANS FOR ALTERING THE FLOW OF REFRIGERANT GAS FROM SAID EVAPORATOR TO SAID COMPRESSOR; AND SECOND CAPACITY CONTROL MEANS INCLUDING VALVE MEANS RESPONSIVE TO THE TEMPERATURE OF THE HEAT EXCHANGE MEDIUM RETURNING FROM SAID LOAD FOR VARYING THE FLOW OF STEAM TO SAID TURBINE, WHEREBY THE ROTATIONAL SPEED OF SAID TURBINE IS REGULATED IN RESPONSE TO CHANGES IN THE COOLING LOAD.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |