Patent FR807192A successfully refreshed from Google Patents.
Patent US3159374A successfully refreshed from Google Patents.
US3159374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible diaphragm control valve
Assignee: Airmatic Valve Inc
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Filing: 1962-04-05
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Granted: 1964-12-01
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Expires: 1982-04-05
Abstract
No abstract record available.
Inventors
- 👤 Kenneth K Kroffke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:50
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/12; F16K31/00; F16K31/12; F16K31/36; F16K31/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A FLOW CONTROL VALVE COMPRISING A VALE BODY HAVING A CAVITY OPENING FROM ONE SURFACE THEREOF AND INLET AND OUTLET PORTS OPENING INTO THE WALL OF SAID CAVITY AND COMMUNICATING WITH EACH OTHER THROUGH SAID CAVITY, A SOLENOID OPERATED VALVE MOUNTED ON SAID ONE SURFACE OF SAID VALVE BODY AND HAVING A WORK PORT THEREIN OPPOSITE SAID CAVITY, A FLEXIBLE DIAPHRAGM CLAMPED AT ITS PERIPHERY BETWEEN SAID SOLENOID VALVE AND SAID VALVE BODY, SAID DIAPHRAGM HAVING A DISTENDED CENTRAL PORTION EXTENDING INTO SAID CAVITY AND ENGAGING THE WALL THEREOF SO AS TO BE CONFINED AGAINST RADIAL EXPANSION, SAID ENGAGEMENT OF SAID DIAPHRAGM AND SAID CAVITY WALL NORMALLY TERMINATING SHORT OF THE OPENINGS OF SAID PORTS INTO SAID WALL SO AS TO PROVIDE SAID COMMUNICATION BETWEEN SAID PORTS, SAID SOLENOID VALVE BEING OPERABLE TO SUPPLY FLUID UNDER PRESSURE THROUGH SAID WORK PORT TO INFLATE SAID CENTRAL PORTION OF SAID DIAPHRAGM TO CAUSE THE LATTER TO BE AXIALLY EXTENDED TO SEALINGLY ENGAGE THE WALL OF SAID CAVITY AROUND SAID INLET AND OUTLET PORTS TO CLOSE THE COMMUNICATION THEREBETWEEN.
Claim 2
Dependent Claim
176 words
A FLOW CONTROL VALVE COMPRISING A VALE BODY HAVING A CAVITY OPENING FROM ONE SURFACE THEREOF AND INLET AND OUTLET PORTS OPENING INTO THE WALL OF SAID CAVITY AND COMMUNICATING WITH EACH OTHER THROUGH SAID CAVITY, A SOLENOID OPERATED VALVE MOUNTED ON SAID ONE SURFACE OF SAID VALVE BODY AND HAVING A WORK PORT THEREIN OPPOSITE SAID CAVITY, A FLEXIBLE DIAPHRAGM CLAMPED AT ITS PERIPHERY BETWEEN SAID SOLENOID VALVE AND SAID VALVE BODY, SAID DIAPHRAGM HAVING A DISTENDED CENTRAL PORTION EXTENDING INTO SAID CAVITY AND ENGAGING THE WALL THEREOF SO AS TO BE CONFINED AGAINST RADIAL EXPANSION, SAID ENGAGEMENT OF SAID DIAPHRAGM AND SAID CAVITY WALL NORMALLY TERMINATING SHORT OF THE OPENINGS OF SAID PORTS INTO SAID WALL SO AS TO PROVIDE SAID COMMUNICATION BETWEEN SAID PORTS, SAID SOLENOID VALVE BEING OPERABLE TO SUPPLY FLUID UNDER PRESSURE THROUGH SAID WORK PORT TO INFLATE SAID CENTRAL PORTION OF SAID DIAPHRAGM TO CAUSE THE LATTER TO BE AXIALLY EXTENDED TO SEALINGLY ENGAGE THE WALL OF SAID CAVITY AROUND SAID INLET AND OUTLET PORTS TO CLOSE THE COMMUNICATION THEREBETWEEN.
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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |