Patent US3389796A successfully refreshed from Google Patents.
US3389796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced pressure relief valve
Assignee: International Motors LLC
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Filing: 1966-01-13
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Granted: 1968-06-25
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Expires: 1986-01-13
Abstract
No abstract record available.
Inventors
- 👤 George T Fiala
- 👤 Sterling W Pelton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:38
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/10; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/794; Y10T137/8085
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
A PRESSURE REGULATOR COMPRISING A HOUSING HAVING AN INLET ADAPTED FOR FLUID FLOW CONNECTION WITH A SOURCE OF FLUID PRESSURE, A FIRST OUTLET ADAPTED FOR FLUID FLOW CONNECTION WITH A FLUID SOURCE AND A SECOND OUTLET ADAPTED FOR FLUID FLOW CONNECTION WITH A HYDRAULIC WORK DEVICE, SAID HOUSING HAVING A BORE EXTENDING INWARDLY FROM ONE END THEREOF, FIRST AND SECOND MEANS IN SAID HOUSING FORMING SEPARATE PASSAGES COMMUNICATING SAID BORE RESPECTIVELY WITH SAID INLET AND WITH SAID FIRST OUTLET, THIRD MEANS FORMING A PASSAGE CONTINUOUSLY COMMUNICATING SAID SECOND OUTLET WITH SAID FIRST PASSAGE MEANS, FLUID FILTER MEANS DISPOSED IN SAID THIRD PASSAGE MEANS, POPPET VALVE MEANS SLIDABLY DISPOSED IN SAID BORE AND HAVING AN ANNULAR GROOVE THEREON FASHIONED TO PROVIDE A CHAMBER BETWEEN SAID POPPET AND SAID BORE COMMUNICATING WITH SAID FIRST PASSAGE
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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |