Patent US3200844A successfully refreshed from Google Patents.
US3200844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap action valving mechanism
Assignee: Motors Liquidation Co
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Filing: 1963-11-29
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Granted: 1965-08-17
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 George W Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:44
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/56; F16K31/563; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A TWO-WAY VALVE STRUCTURE COMPRISING HOUSING MEANS, MEANS FORMING FIRST, SECOND AND THIRD PASSAGEWAYS IN SAID HOUSING MEANS, MEANS FORMING FIRST AND SECOND PORTS IN SAID HOUSING MEANS FOR CONNECTING SAID FIRST AND SECOND HOUSING PASSAGEWAYS TO A SOURCE OF ATMOSPHERIC PRESSURE, MEANS FORMING AN ADDITIONAL PORT IN SAID HOUSING ADAPTED TO BE CONNECTED THROUGH SAID THIRD PASSAGEWAY WITH ANOTHER PRESSURE SOURCE, A MOVABLE VALVING ELEMENT SEALINGLY ENGAGING SAID HOUSING MEANS INCLUDING PASSAGEWAY MEANS THEREIN FOR ALTERNATELY CONNECTING ONE OF SAID FFIRST AND SECOND PORTS WITH SAID ADDITIONAL PORTWHILE LEAVING THE OTHER OF SAID FIRST AND SECOND PORTS EXPOSED TO ATMOSPHERE TO EFFECT A PRESSURE DIFFERENTIAL BETWEEN SAID FIRST AND SECOND PORTS, VALVE ACTUATOR MEANNS FOR MOVVING SAID VALVING ELEMENT INTO SELECTED POSITIONS TO EFFECT A REVERSAL OF THE PRESSURE DIFFERENTIAL BETWEEN SAID FIRST AND SECOND PORTS BY REVERSING THE CONNECTION OF SAID FIRST AND SECOND PORTS WITH SAID ADDITIONAL PORT AND ATMOSPHERE, SAID VALVE ACTUATOR MEANS INCLUDING A CON-
Claim 2
Dependent Claim
160 words
A TWO-WAY VALVE STRUCTURE COMPRISING HOUSING MEANS, MEANS FORMING FIRST, SECOND AND THIRD PASSAGEWAYS IN SAID HOUSING MEANS, MEANS FORMING FIRST AND SECOND PORTS IN SAID HOUSING MEANS FOR CONNECTING SAID FIRST AND SECOND HOUSING PASSAGEWAYS TO A SOURCE OF ATMOSPHERIC PRESSURE, MEANS FORMING AN ADDITIONAL PORT IN SAID HOUSING ADAPTED TO BE CONNECTED THROUGH SAID THIRD PASSAGEWAY WITH ANOTHER PRESSURE SOURCE, A MOVABLE VALVING ELEMENT SEALINGLY ENGAGING SAID HOUSING MEANS INCLUDING PASSAGEWAY MEANS THEREIN FOR ALTERNATELY CONNECTING ONE OF SAID FFIRST AND SECOND PORTS WITH SAID ADDITIONAL PORTWHILE LEAVING THE OTHER OF SAID FIRST AND SECOND PORTS EXPOSED TO ATMOSPHERE TO EFFECT A PRESSURE DIFFERENTIAL BETWEEN SAID FIRST AND SECOND PORTS, VALVE ACTUATOR MEANNS FOR MOVVING SAID VALVING ELEMENT INTO SELECTED POSITIONS TO EFFECT A REVERSAL OF THE PRESSURE DIFFERENTIAL BETWEEN SAID FIRST AND SECOND PORTS BY REVERSING THE CONNECTION OF SAID FIRST AND SECOND PORTS WITH SAID ADDITIONAL PORT AND ATMOSPHERE, SAID VALVE ACTUATOR MEANS INCLUDING A CON-
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |