US3296816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control device for refrigerating apparatus
Assignee: Motors Liquidation Co
•
Filing: 1964-04-10
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Granted: 1967-01-10
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Expires: 1984-04-10
Abstract
No abstract record available.
Inventors
- 👤 Jr John Weibel
- 👤 Richard E Widdowson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:40
CPC Classifications
F; F25; F25B; F25B47/00; F25B47/006; F25B41/00; F25B41/20; F25B41/22; F25B41/30; F25B41/31; F25B41/32; F25B41/325; F25B41/33; F25B41/335
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
REFRIGERATING APPARATUS INCLUDING A COMPRESSOR HAVING AN INLET AND AN OUTLET, A CONDENSER HAVING AN INLET CONNECTED TO SAID OUTLET AND HAVING AN OUTLET, EVAPORATING MEANS HAVING AN INLET AND AN OUTLET, A SUCTION LINE CONTROL VALVE CONNECTED BETWEEN THE OUTLET OF SAID EVAPORATING MEANS AND THE INLET OF SAID COMPRESSOR, A FLOW CONTROL DEVICE HAVING AN INLET CONNECTED TO THE OUTLET OF SAID CONDENSER AND HAVING AN OUTLET CONNECTED TO THE INLET OF SAID EVAPORATING MEANS, SAID FLOW CONTROL DEVICE COMPRISING VALVE MEANS PROVIDED WITH PRESSURE RESPONSIVE OPERATING MEANS SUBSTANTIALLY RESPONSIVE TO THE DIFFERENCE BETWEEN THE PRESSURE IN THE EVAPORATING MEANS AND THE PRESSURE BETWEEN THE SUCTION LINE CONTROL VALVE AND THE INLET OF SAID COMPRESSOR, SAID PRESSURE RESPONSIVE OPERATING MEANS BEING ORIENTED AND CONNECTED TO PROVIDE INCREASED OPENING OF THE VALVE MEANS IN RESPONSE TO REDUCED PRESSURE BETWEEN SAID SUCTION LINE CONTROL VALVE AND THE INLET OF SAID COMPRESSOR.
Claim 2
Dependent Claim
151 words
REFRIGERATING APPARATUS INCLUDING A COMPRESSOR HAVING AN INLET AND AN OUTLET, A CONDENSER HAVING AN INLET CONNECTED TO SAID OUTLET AND HAVING AN OUTLET, EVAPORATING MEANS HAVING AN INLET AND AN OUTLET, A SUCTION LINE CONTROL VALVE CONNECTED BETWEEN THE OUTLET OF SAID EVAPORATING MEANS AND THE INLET OF SAID COMPRESSOR, A FLOW CONTROL DEVICE HAVING AN INLET CONNECTED TO THE OUTLET OF SAID CONDENSER AND HAVING AN OUTLET CONNECTED TO THE INLET OF SAID EVAPORATING MEANS, SAID FLOW CONTROL DEVICE COMPRISING VALVE MEANS PROVIDED WITH PRESSURE RESPONSIVE OPERATING MEANS SUBSTANTIALLY RESPONSIVE TO THE DIFFERENCE BETWEEN THE PRESSURE IN THE EVAPORATING MEANS AND THE PRESSURE BETWEEN THE SUCTION LINE CONTROL VALVE AND THE INLET OF SAID COMPRESSOR, SAID PRESSURE RESPONSIVE OPERATING MEANS BEING ORIENTED AND CONNECTED TO PROVIDE INCREASED OPENING OF THE VALVE MEANS IN RESPONSE TO REDUCED PRESSURE BETWEEN SAID SUCTION LINE CONTROL VALVE AND THE INLET OF SAID COMPRESSOR.
References Cited (Backward Citations)
US2116801A
Cited
US2986015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |