US3172272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning apparatus
Assignee: YORK-LUXAIRE Inc A CORP OF DE
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Filing: 1962-06-19
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Granted: 1965-03-09
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Expires: 1982-06-19
Abstract
No abstract record available.
Inventors
- 👤 Carl F Alsing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:31
CPC Classifications
F; F25; F25B; F25B13/00; F25B41/00; F25B41/30; F25B41/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
IN A REVERSIBLE SYSTEM FOR HEATING AND COOLING AIR LOR AN ENCLOSURE, A COMPRESSOR, A FIRST HEAT EXCHANGER FOR CONDITIONING ENCLOSURE AIR, A SECOND HEAT EXCHANGER IN HEAT TRANSFER RELATIONSHIP WITH OUTDOOR AIR, MEANS INCLUDING A REVERSING VALVE FOR SELECTIVELY CONNECTING THE DISCHARGE AND THE SUCTION OF SAID COMPRESSOR TO SAID FIRST AND SECOND HEAT EXCHANGERS, RESPECTIVELY DURING HEATING EXCHANGERS RESPECTIVELY DURING OND AND FIRST HEAT EXCHANGERS RESPECTIVELY DURING COOLING OPERATION, AND A CAPILLARY TUBE CONNECTED BETWEEN SAID HEAT EXCHANGERS AND SERVING TO EXPAND REFRIGERANT FROM CONDENSING PRESSURE TO EVAPORATING PRESSURE DURING BOTH THE HEATING AND THE COOLING OPERATIONS, SAID CAPILLARY TUBE BEING OUT OF HEAT TRANSFER RELATIONSHIP WITH REGRIGERANT FLOWING THROUGH SAID SECOND OR OUTDOOR HEAT EXCHANGER, SAID CAPILLARY TUBE HAVING A PORTION THEREOF IN HEAT TRANSFER RELATIONSHIP WITH A PORTION OF THE REFRIGERATING SYSTEM ADJACENT THE END OF THE CAPILLARY TUBE CONNECTED TO THE FIRST HEAT EXCHANGER AND CONTAINING, DURING HEATING OPERATION, REFRIGERANT CONDENSED IN SAID FIRST HEAT EXCHANGER, WHEREBY THE FLOW RATE OF REFRIGERANT THROUGH THE REFRIGERANTING SYSTEM IS LOWER DURING HEATING OPERATION THAN DURING COOLING OPERATION.
Claim 2
Dependent Claim
180 words
IN A REVERSIBLE SYSTEM FOR HEATING AND COOLING AIR LOR AN ENCLOSURE, A COMPRESSOR, A FIRST HEAT EXCHANGER FOR CONDITIONING ENCLOSURE AIR, A SECOND HEAT EXCHANGER IN HEAT TRANSFER RELATIONSHIP WITH OUTDOOR AIR, MEANS INCLUDING A REVERSING VALVE FOR SELECTIVELY CONNECTING THE DISCHARGE AND THE SUCTION OF SAID COMPRESSOR TO SAID FIRST AND SECOND HEAT EXCHANGERS, RESPECTIVELY DURING HEATING EXCHANGERS RESPECTIVELY DURING OND AND FIRST HEAT EXCHANGERS RESPECTIVELY DURING COOLING OPERATION, AND A CAPILLARY TUBE CONNECTED BETWEEN SAID HEAT EXCHANGERS AND SERVING TO EXPAND REFRIGERANT FROM CONDENSING PRESSURE TO EVAPORATING PRESSURE DURING BOTH THE HEATING AND THE COOLING OPERATIONS, SAID CAPILLARY TUBE BEING OUT OF HEAT TRANSFER RELATIONSHIP WITH REGRIGERANT FLOWING THROUGH SAID SECOND OR OUTDOOR HEAT EXCHANGER, SAID CAPILLARY TUBE HAVING A PORTION THEREOF IN HEAT TRANSFER RELATIONSHIP WITH A PORTION OF THE REFRIGERATING SYSTEM ADJACENT THE END OF THE CAPILLARY TUBE CONNECTED TO THE FIRST HEAT EXCHANGER AND CONTAINING, DURING HEATING OPERATION, REFRIGERANT CONDENSED IN SAID FIRST HEAT EXCHANGER, WHEREBY THE FLOW RATE OF REFRIGERANT THROUGH THE REFRIGERANTING SYSTEM IS LOWER DURING HEATING OPERATION THAN DURING COOLING OPERATION.
References Cited (Backward Citations)
US2750762A
Cited
US2956421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |