US3352124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid refrigerant recirculating system
Assignee: Individual
•
Filing: 1966-02-11
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Granted: 1967-11-14
•
Expires: 1986-02-11
Abstract
No abstract record available.
Inventors
- 👤 John E Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:27
CPC Classifications
F; F25; F25B; F25B41/00; F25B39/00; F25B39/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A FLOODED-COIL REFRIGERATION SYSTEM COMPRISING, IN COMBINATION, AN EVAPORATOR, MEANS FOR FEEDING SAID EVAPORATOR WITH LIQUID REFRIGERANT AT A FLOW RATE IN EXCESS OF THAT WHICH THE EVAPORATOR IS CAPABLE OF VAPORIZING A FIRST AND A SECOND PUMPING TANK, A CONDENSER, A COMPRESSOR DISCHARGING PRESSURIZED REFRIGERANT INTO SAID CONDENSER AND CONTROL MEANS FOR ALTERNATELY DIRECTING THE DISCHARGE FROM SAID EVAPORATOR INTO ONE OF SAID PUMPING TANKS AND DIRECTING THE VAPORIZED RERIGERANT FROM SAID ONE PUMPING TANK INTO SAID COMPRESSOR, WHILE DISCHARGING THE LIQUID REFRIGERANT FROM THE OTHER OF SAID PUMPING TANKS INTO SAID REFRIGERATION SYSTEM WHEREBY IT MAY BE RETURNED TO SAID EVAPORATOR.
Claim 2
Dependent Claim
103 words
A FLOODED-COIL REFRIGERATION SYSTEM COMPRISING, IN COMBINATION, AN EVAPORATOR, MEANS FOR FEEDING SAID EVAPORATOR WITH LIQUID REFRIGERANT AT A FLOW RATE IN EXCESS OF THAT WHICH THE EVAPORATOR IS CAPABLE OF VAPORIZING A FIRST AND A SECOND PUMPING TANK, A CONDENSER, A COMPRESSOR DISCHARGING PRESSURIZED REFRIGERANT INTO SAID CONDENSER AND CONTROL MEANS FOR ALTERNATELY DIRECTING THE DISCHARGE FROM SAID EVAPORATOR INTO ONE OF SAID PUMPING TANKS AND DIRECTING THE VAPORIZED RERIGERANT FROM SAID ONE PUMPING TANK INTO SAID COMPRESSOR, WHILE DISCHARGING THE LIQUID REFRIGERANT FROM THE OTHER OF SAID PUMPING TANKS INTO SAID REFRIGERATION SYSTEM WHEREBY IT MAY BE RETURNED TO SAID EVAPORATOR.
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |