US3128607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controls for heat pumps
Assignee: Westinghouse Electric Corp
•
Filing: 1962-11-20
•
Granted: 1964-04-14
•
Expires: 1982-11-20
Abstract
No abstract record available.
Inventors
- 👤 William K Kyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:52
CPC Classifications
F; F25; F25B; F25B13/00; F25B2400/00; F25B2400/05; F25B2400/052; F25B2400/054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A HEAT PUMP COMPRISING AN INDOOR AIR COIL, AN OUTDOOR AIR COIL, A REFRIGERANT COMPRESSOR, AN ELECTRIC MOTOR FOR DRIVING SAID COMPRESSOR, MEANS INCLUDING A REFRIGERANT REVERSAL VALVE FOR CONNECTING SAID COILS TO SAID COMPRESSOR, A SOLENOID FOR ADJUSTING SAID VALVE TO ROUTE REFRIGERANT FROM SAID COMPRESSOR TO SAID OUTDOOR COIL AND THEN TO SAID INDOOR COIL OR TO ROUTE REFRIGERANT FROM SAID COMPRESSOR TO SAID INDOOR COIL AND THEN TO SAID OUTDOOR COIL, A FIRST THERMOSTAT, ELECTRIC SUPPLY CONNECTIONS, MEANS INCLUDING SAID THERMOSTAT FOR CONNECTING SAID MOTOR TO SAID CONNECTIONS, RELAY MEANS, A NORMALLY OPEN QUICK MAKE SWITCH WHICH CLOSES WHEN SAID RELAY
Claim 2
Dependent Claim
104 words
A HEAT PUMP COMPRISING AN INDOOR AIR COIL, AN OUTDOOR AIR COIL, A REFRIGERANT COMPRESSOR, AN ELECTRIC MOTOR FOR DRIVING SAID COMPRESSOR, MEANS INCLUDING A REFRIGERANT REVERSAL VALVE FOR CONNECTING SAID COILS TO SAID COMPRESSOR, A SOLENOID FOR ADJUSTING SAID VALVE TO ROUTE REFRIGERANT FROM SAID COMPRESSOR TO SAID OUTDOOR COIL AND THEN TO SAID INDOOR COIL OR TO ROUTE REFRIGERANT FROM SAID COMPRESSOR TO SAID INDOOR COIL AND THEN TO SAID OUTDOOR COIL, A FIRST THERMOSTAT, ELECTRIC SUPPLY CONNECTIONS, MEANS INCLUDING SAID THERMOSTAT FOR CONNECTING SAID MOTOR TO SAID CONNECTIONS, RELAY MEANS, A NORMALLY OPEN QUICK MAKE SWITCH WHICH CLOSES WHEN SAID RELAY
References Cited (Backward Citations)
US2713250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |