Patent US3166358A successfully refreshed from Google Patents.
US3166358A
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Fluid pressure system and control valve
Assignee: Bendix Westinghouse Automotive Air Brake Co
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Filing: 1963-03-21
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Granted: 1965-01-19
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Expires: 1983-03-21
Abstract
No abstract record available.
Inventors
- 👤 Harry M Valentine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:05
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/14; F16K31/143; B; B60; B60T; B60T15/00; B60T15/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86686
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
163 words
A VALVE FOR THE CONTROL OF FLUID PRESSURE COMPRISING A CASING HAVING FIRST AND SECOND AXIALLY ALIGNED INLET AND EXHAUST BORES AND A CHAMBER BETWEEN SAID BORES COMMUNICATING WITH BOTH OF SAID BORES, SAID CHAMBER BEING PROVIDED WITH OPPOSED INLET AND OUTLET VALVE SEATS, A PISTON SLIDEABLY MOUNTED IN SAID CHAMBER AND HAVING ONE SIDE EXPOSED TO THE EXHAUST VALVE SEAT AND OTHER SIDE EXPOSED TO THE INLET VALVE SEAT, INLET AND EXHAUST VALVES CONNECTED TO SAID PISTON ON OPPOSITE SIDES THEREOF FOR MOVEMENT THEREWITH AND COOPERATING WITH SAID VALVE SEATS TO CONNECT SAID INLET BORE WITH SAID CHAMBER WHILE DISCONNECTING SAID EXHAUST BORE FROM SAID CHAMBER AND VICE VERSA, SAID EXHAUST VALVE BEING CONNECTED TO SAID PISTON IN SPACED RELATIONSHIP AND HAVING AN EFFECTIVE CROSS SECTIONAL AREA SUBSTANTIALLY EQUAL AND OPPOSED TO THE EFFECTIVE CROSS SECTIONAL AREA OF THE SIDE OF SAID PISTON FACING SAID VALVE, INLET AND EXHAUST PORTS IN SAID CASING RESPECTIVELY CONTINUOUSLY CONNECTED TO SAID INLET AND EXHAUST BORES,
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) | 1968-01-19 | 1968-07-20 | 1969-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-19 | 1972-07-20 | 1973-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-19 | 1976-07-20 | 1977-01-19 | $7700.00 | Window Closed / Lapsed |