Patent US3386469A successfully refreshed from Google Patents.
US3386469A
Expired / Lapsed
US
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Pressure regulator
Assignee: Robertshaw Controls Co
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Filing: 1966-07-29
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Granted: 1968-06-04
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Expires: 1986-07-29
Abstract
No abstract record available.
Inventors
- 👤 Samuel T Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:55
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0638; G05D16/0641; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7834
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A PRESSURE REGULATOR COMPRISING: A HOUSING HAVING INLET AND OUTLET PASSAGE MEANS FOR PERMITTING FLUID FLOW THERETHROUGH, A DIAPHRAGM VALVE MEANS FOR REGULATING THE FLUID FLOW OPERATIVELY DISPOSED BETWEEN SAID INLET AND OUTLET PASSAGES TO DIVIDE SAID HOUSING INTO AN UPPER AND A LOWER CHAMBER, A CENTRAL SEGMENT DEPENDING FROM SAID DIAPHRAGM VALVE MEANS INTO SAID LOWER CHAMBER, A DOWNWARDLY OPENING CAVITY FORMED IN THE BOTTOM OF SAID CENTRAL SECTION FOR COMMUNICATING WITH SAID INLET PASSAGE MEANS, THE UPPER END OF SAID CAVITY BEING DEFINED BY A HORIZONTALLY EXTENDING WALL, VALVE SEAT MEANS DISPOSED WITHIN SAID CAVITY BELOW SAID WALL, MEANS WITHIN SAID UPPER CHAMBER FOR FORCING SAID HORIZONTAL MEANS INTO ENGAGEMENT WITH SAID VALVE SEAT MEANS TO TERMINATE FLUID FLOW, ANND MEANS WITHIN SAID LOWER CHAMBER TO PERMIT MINIMUM FLOW BETWEEN SAID INLET AND OUTLET PASSAGE MEANS UNDER LOW FLOW CONDITIONS.
Claim 2
Dependent Claim
142 words
A PRESSURE REGULATOR COMPRISING: A HOUSING HAVING INLET AND OUTLET PASSAGE MEANS FOR PERMITTING FLUID FLOW THERETHROUGH, A DIAPHRAGM VALVE MEANS FOR REGULATING THE FLUID FLOW OPERATIVELY DISPOSED BETWEEN SAID INLET AND OUTLET PASSAGES TO DIVIDE SAID HOUSING INTO AN UPPER AND A LOWER CHAMBER, A CENTRAL SEGMENT DEPENDING FROM SAID DIAPHRAGM VALVE MEANS INTO SAID LOWER CHAMBER, A DOWNWARDLY OPENING CAVITY FORMED IN THE BOTTOM OF SAID CENTRAL SECTION FOR COMMUNICATING WITH SAID INLET PASSAGE MEANS, THE UPPER END OF SAID CAVITY BEING DEFINED BY A HORIZONTALLY EXTENDING WALL, VALVE SEAT MEANS DISPOSED WITHIN SAID CAVITY BELOW SAID WALL, MEANS WITHIN SAID UPPER CHAMBER FOR FORCING SAID HORIZONTAL MEANS INTO ENGAGEMENT WITH SAID VALVE SEAT MEANS TO TERMINATE FLUID FLOW, ANND MEANS WITHIN SAID LOWER CHAMBER TO PERMIT MINIMUM FLOW BETWEEN SAID INLET AND OUTLET PASSAGE MEANS UNDER LOW FLOW CONDITIONS.
References Cited (Backward Citations)
FR845244A
Cited
US3270575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |