Patent US5024295A successfully refreshed from Google Patents.
Patent US3163178A successfully refreshed from Google Patents.
US3163178A
Expired / Lapsed
US
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Coupler for hydraulic lines
Assignee: Pioneer Hydraulics Inc
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Filing: 1962-11-19
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Granted: 1964-12-29
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Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Paul E Stratman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:02
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/22; F16L37/23; F16K; F16K15/00; F16K15/02; F16K15/04; F16K15/044; F16L37/28; F16L37/30; F16L37/32; F16L37/33; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/785; Y10T137/7852; Y10T137/7904; Y10T137/7922; Y10T137/7923; Y10T137/8593; Y10T137/87917; Y10T137/87925
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
COUPLING MECHANISM FOR RELEASABLY CONNECTING AND INTERCOMMUNICATING A PAIR OF PRESSURE-FLUID CONDUIT SECTIONS, HAVING IN COMBINATION A PAIR OF COOPERATING BODY MEMBERS ONE CONNECTED WITH A SOURCE OF PRESSURE FLUID AND THE OTHER CONNECTED WITH A DEVICE TO BE POWERED BY FLUID PRESSURE, SAID BODY MEMBERS HAVING LONGITUDINAL BORES AND ADAPTED TO BE MOVED SUBSTANTIALLY END-TO-END, WITH RELATIVE INWARD LONGITUDINAL MOVEMENT FOR COUPLING, MEANS FOR RELEASABLY INTERLOCKING SAID BODY MEMBERS TOGETHER IN FULLY COUPLED POSITION THEREOF, THE BORES OF SAID BODY MEMBERS HAVING OPPOSED ANNULAR VALVE SEATS DISPOSED IN CLOSE COAXIAL SPACED RELATION WHEN SAID BODY MEMBERS ARE FULLY COUPLED, CHECK VALVES IN SAID BORES EACH HAVING A FORWARD PERIPHERAL PORTION PROTRUSIBLE THROUGH ITS RELATED VALVE SEAT, THE RELATION OF SAID PROTRUSIONS WITH THE SPACED RELATION OF SAID VALVE SEATS BEING SUCH THAT ABUTMENT OF SAID PROTRUDING VALVE PORTIONS OCCURS JUST PRIOR TO FINAL INWARD LONGITUDINAL MOVEMENT OF SAID BODY MEMBERS IN COUPLING,
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) | 1967-12-29 | 1968-06-29 | 1968-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-29 | 1972-06-29 | 1972-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-29 | 1976-06-29 | 1976-12-29 | $7700.00 | Window Closed / Lapsed |