US3316731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature responsive modulating control valve for a refrigeration system
Assignee: Individual
•
Filing: 1965-03-01
•
Granted: 1967-05-02
•
Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Lester K Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
F; F25; F25B; F25B47/00; F25B47/02; F25B47/022; F25B41/00; F25B41/20; F25B43/00; F25B43/02; F25B5/00; F25B2400/00; F25B2400/22; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87499
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A TEMPERATURE CONTROL VALVE FOR THE EVAPORATOR OF A REFRIGERATION SYSTEM FIXTURE, COMPRISING, A BODY HAVING A PRESSURE CHAMBER, A VALVE ELEMENT MOUNTED IN SAID BODY FOR MOVEMENT BETWEEN OPEN AND CLOSED POSITIONS, SAID VALVE ELEMENT HAVING MEANS EXPOSED TO SAID PRESSURE CHAMBER, A PORT IN SAID VALVE ELEMENT FOR RESTRICTED COMMUNICATION THERETHROUGH TO SAID PRESSURE CHAMBER, MEANS FOR VARYING THE PRESSURE IN SAID PRESSURE CHAMBER FOR CAUSING MODULATING MOVEMENT OF SAID VALVE ELEMENT BETWEEN SAID OPEN AND CLOSED POSITIONS TO MODULATE THE BACKPRESSURE ON THE EVAPORATOR, AND SOLELY TEMPERATURE RESPONSIVE MEANS FOR ASSOCIATING WITH THE FIXTURE AND HAVING MEANS FOR OPERATING THE SAID MEANS FOR VARYING THE PRESSURE IN SAID PRESSURE CHAMBER INVERSELY WITH FIXTURE TEMPERATURE.
Claim 2
Dependent Claim
117 words
A TEMPERATURE CONTROL VALVE FOR THE EVAPORATOR OF A REFRIGERATION SYSTEM FIXTURE, COMPRISING, A BODY HAVING A PRESSURE CHAMBER, A VALVE ELEMENT MOUNTED IN SAID BODY FOR MOVEMENT BETWEEN OPEN AND CLOSED POSITIONS, SAID VALVE ELEMENT HAVING MEANS EXPOSED TO SAID PRESSURE CHAMBER, A PORT IN SAID VALVE ELEMENT FOR RESTRICTED COMMUNICATION THERETHROUGH TO SAID PRESSURE CHAMBER, MEANS FOR VARYING THE PRESSURE IN SAID PRESSURE CHAMBER FOR CAUSING MODULATING MOVEMENT OF SAID VALVE ELEMENT BETWEEN SAID OPEN AND CLOSED POSITIONS TO MODULATE THE BACKPRESSURE ON THE EVAPORATOR, AND SOLELY TEMPERATURE RESPONSIVE MEANS FOR ASSOCIATING WITH THE FIXTURE AND HAVING MEANS FOR OPERATING THE SAID MEANS FOR VARYING THE PRESSURE IN SAID PRESSURE CHAMBER INVERSELY WITH FIXTURE TEMPERATURE.
References Cited (Backward Citations)
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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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |