US3246482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat pumps
Assignee: YORK-LUXAIRE Inc A CORP OF DE
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Filing: 1964-12-31
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Granted: 1966-04-19
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Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 James R Harnish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:37
CPC Classifications
F; F25; F25B; F25B13/00; F25B2400/00; F25B2400/05; F25B2400/051; F25B2400/054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A HEAT PUMP COMPRISING A REFRIGERANT COMPRESSOR, REVERSAL VALVE MEANS, A DISCHARGE GAS TUBE CONNECTING THE DISCHARGE SIDE OF SAID COMPRESSOR TO SAID VALVE MEANS, AN OUTDOOR AIR COIL, A SECOND TUBE CONNECTING SAID VALVE MEANS TO SAID COIL, AN INDOOR AIR COIL, A THIRD TUBE CONNECTING SAID VALVE MEANS TO SAID INDOOR COIL, A SUCTION LINE ACCUMULATOR, A FOURTH TUBE CONNECTING SAID VALVE MEANS TO SAID ACCUMULATOR, A FIRST FIXED RESTRICTOR HAVING A RELATIVELY LARGE RESISTANCE TO REFRIGERANT FLOW, A FIFTH TUBE HAVING A RELATIVELY SMALL RESISTANCE TO REFRIGERANT FLOW CONNECTING SAID RESTRICTOR TO SAID OUTDOOR COIL, A SECOND FIXED RESTRICTOR HAVING A RELATIVELY LARGE RESISTANCE TO REFRIGERANT FLOW, A SIXTH TUBE HAVING A RELATIVELY SMALL RESISTANCE TO REFRIGERANT FLOW CONNECTING SAID SECOND RESTRICTOR TO SAID INDOOR COIL, A SEVENTH TUBE HAVING A RELATIVELY SMALL RESISTANCE TO REFRIGERANT FLOW CONNECTING SAID RESTRICTORS, AND A SUCTION GAS TUBE CONNECTING SAID ACCUMULATOR TO THE SUCTION SIDE OF SAID COMPRESSOR, SAID SEVENTH TUBE BEING IN HEAT EXCHANGE CONTACT WITH SAID SUCTION GAS TUBE, SAID RESTRICTORS SERVING AS TWO-WAY EXPANSION MEANS.
Claim 2
Dependent Claim
178 words
A HEAT PUMP COMPRISING A REFRIGERANT COMPRESSOR, REVERSAL VALVE MEANS, A DISCHARGE GAS TUBE CONNECTING THE DISCHARGE SIDE OF SAID COMPRESSOR TO SAID VALVE MEANS, AN OUTDOOR AIR COIL, A SECOND TUBE CONNECTING SAID VALVE MEANS TO SAID COIL, AN INDOOR AIR COIL, A THIRD TUBE CONNECTING SAID VALVE MEANS TO SAID INDOOR COIL, A SUCTION LINE ACCUMULATOR, A FOURTH TUBE CONNECTING SAID VALVE MEANS TO SAID ACCUMULATOR, A FIRST FIXED RESTRICTOR HAVING A RELATIVELY LARGE RESISTANCE TO REFRIGERANT FLOW, A FIFTH TUBE HAVING A RELATIVELY SMALL RESISTANCE TO REFRIGERANT FLOW CONNECTING SAID RESTRICTOR TO SAID OUTDOOR COIL, A SECOND FIXED RESTRICTOR HAVING A RELATIVELY LARGE RESISTANCE TO REFRIGERANT FLOW, A SIXTH TUBE HAVING A RELATIVELY SMALL RESISTANCE TO REFRIGERANT FLOW CONNECTING SAID SECOND RESTRICTOR TO SAID INDOOR COIL, A SEVENTH TUBE HAVING A RELATIVELY SMALL RESISTANCE TO REFRIGERANT FLOW CONNECTING SAID RESTRICTORS, AND A SUCTION GAS TUBE CONNECTING SAID ACCUMULATOR TO THE SUCTION SIDE OF SAID COMPRESSOR, SAID SEVENTH TUBE BEING IN HEAT EXCHANGE CONTACT WITH SAID SUCTION GAS TUBE, SAID RESTRICTORS SERVING AS TWO-WAY EXPANSION MEANS.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |