US3307369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration system with compressor loading means
Assignee: McQuay Perfex Inc
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Filing: 1965-06-29
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Granted: 1967-03-07
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Expires: 1985-06-29
Abstract
No abstract record available.
Inventors
- 👤 James R Harnish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:35
CPC Classifications
F; F25; F25B; F25B49/00; F25B49/02; F25B49/022; F24; F24F; F24F5/00; F24F5/0007; F24F5/001; F25B2400/00; F25B2400/07; F25B2400/074; F25B2600/00; F25B2600/02; F25B2600/026; F25B2600/0261
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A COOLING SYSTEM COMPRISING A REFRIGERANT COMPRESSOR, A CONDENSER, A HEAT EXCHANGE COIL, AND AUTOMATIC EXPANSION VALVE, AN EVAPORATOR AND AN ACCUMULATOR CONNECTED IN THE ORDER NAMED IN A REFRIGERATION CIRCUIT, SAID COIL BEING ARRANGED TO HEAT LIQUID WITHIN SAID ACCUMULATOR, SAID COMPRESSOR HAVING FIRST AND SECOND CYLINDERS, AND HAVING MEANS INCLUDING A SOLENOID FOR LOADING AND UNLOADING SAID SECOND CYLINDER, AN ELECTRIC CIRCUIT FOR ENERGIZING SAID SOLENOID, MEANS FOR COOLING A FLUID WITH SAID EVAPORATOR, A THERMOSTAT RESPONSIVE TO
Claim 2
Dependent Claim
80 words
A COOLING SYSTEM COMPRISING A REFRIGERANT COMPRESSOR, A CONDENSER, A HEAT EXCHANGE COIL, AND AUTOMATIC EXPANSION VALVE, AN EVAPORATOR AND AN ACCUMULATOR CONNECTED IN THE ORDER NAMED IN A REFRIGERATION CIRCUIT, SAID COIL BEING ARRANGED TO HEAT LIQUID WITHIN SAID ACCUMULATOR, SAID COMPRESSOR HAVING FIRST AND SECOND CYLINDERS, AND HAVING MEANS INCLUDING A SOLENOID FOR LOADING AND UNLOADING SAID SECOND CYLINDER, AN ELECTRIC CIRCUIT FOR ENERGIZING SAID SOLENOID, MEANS FOR COOLING A FLUID WITH SAID EVAPORATOR, A THERMOSTAT RESPONSIVE TO
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |