US3219102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for deriving heat from refrigerant evaporator
Assignee: Thermo King Corp
•
Filing: 1961-12-22
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Granted: 1965-11-23
•
Expires: 1981-12-22
Abstract
No abstract record available.
Inventors
- 👤 David H Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:26
CPC Classifications
F; F25; F25B; F25B47/00; F25B47/02; F25B47/022; F25B43/00; F25B43/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A METHOD OF DERIVING HEAT FROM REFRIGERANT FLUID IN A REFRIGERATION SYSTEM EMBODYING A CLOSED CIRCUIT INCLUDING A COMPRESSOR, CONDENSER, RECEIVER AND EVAPORATOR: COMPRISING THE STEPS OF COMPLETELY BLOCKING THE FLOW OF SAID FLUID WITHIN SAID CIRCUIT WITH RESPECT TO SAID CONDENSER WHILE SAID COMPRESSOR IS OPERATING, AND DIVERTING SAID FLOW THROUGH SEPARATE PATHS WITHIN SAID CIRCUIT TO SAID EVAPORATOR AND SAID RECEIVER TO ADMIT COMPRESSED GAS INTO SAID EVAPORATOR AND ALSO FORCE THE FLUID FROM SAID RECEIVER INTO THE REMAINDER OF SAID CIRCUIT AND ESTABLISH THE FLUID PRESSURE IN SAID EVAPORATOR AT A VALUE EXCEEDING THE PRESSURE WITHIN THE BLOCKED CONDENSER.
Claim 2
Independent Claim
102 words
A METHOD OF DERIVING HEAT FROM REFRIGERANT FLUID IN A REFRIGERATION SYSTEM EMBODYING A CLOSED CIRCUIT INCLUDING A COMPRESSOR, CONDENSER, RECEIVER AND EVAPORATOR: COMPRISING THE STEPS OF COMPLETELY BLOCKING THE FLOW OF SAID FLUID WITHIN SAID CIRCUIT WITH RESPECT TO SAID CONDENSER WHILE SAID COMPRESSOR IS OPERATING, AND DIVERTING SAID FLOW THROUGH SEPARATE PATHS WITHIN SAID CIRCUIT TO SAID EVAPORATOR AND SAID RECEIVER TO ADMIT COMPRESSED GAS INTO SAID EVAPORATOR AND ALSO FORCE THE FLUID FROM SAID RECEIVER INTO THE REMAINDER OF SAID CIRCUIT AND ESTABLISH THE FLUID PRESSURE IN SAID EVAPORATOR AT A VALUE EXCEEDING THE PRESSURE WITHIN THE BLOCKED CONDENSER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |