US3254885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic buffer structure
Assignee: Houdaille Industries Inc
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Filing: 1965-02-23
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Granted: 1966-06-07
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Expires: 1985-02-23
Abstract
No abstract record available.
Inventors
- 👤 Rumsey Rollin Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:03
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/54; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32311
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
108 words
IN A HYDRAULIC BUFFER CONSTRUCTION INCLUDING A HOUSING HAVING A WORKING CYLINDER AND A PISTON WORKING THEREIN AND HAVING A PISTON ROD PROJECTING FROM ONE END OF THE HOUSING, THE HOUSING HAVING AN OPENING IN THE OPPOSITE END THEREOF, A FLANGED PLUG HAVING A BOSS PORTION IN SAID OPENING AND A FLANGE PORTION ENGAGING THRUSTINGLY AGAINST THE OUTER END OF SAID HOUSING ABOUT SAID OPENING, MEANS SECURING SAID FLANGE PORTION TO THE HOUSING, SAID PLUG HAVING A CONVEX OUTWARDLY FACING BEARING SURFACE DIRECTED AWAY FROM SAID HOUSING, AND A FOLLOWER HAVING A COMPLEMENTARY CONCAVE BEARING SURFACE FACING GENERALLY TOWARD SAID HOUSING AND SWIVELLY ENGAGING SAID CONVEX BEARING SURFACE.
References Cited (Backward Citations)
US1148590A
Cited
US1374413A
Cited
US2167984A
Cited
US2171827A
Cited
US2574788A
Cited
US2739773A
Cited
US2933309A
Cited
US3024875A
Cited
US3111201A
Cited
US3081114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |