US3136225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston cushioning structure
Assignee: Individual
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Filing: 1962-01-29
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Granted: 1964-06-09
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Expires: 1982-01-29
Abstract
No abstract record available.
Inventors
- 👤 Harold K Rader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:37
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/22; F15B15/223
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A CYLINDER INCLUDING A PAIR OF OPPOSITE END WALLS ONE OF WHICH INCLUDES AN ESCAPE PASSAGE FOR PISTON ACTUATING MEDIA, A PISTON ROD RECIPROCALLY MOUNTED IN THE OTHER OF SAID END WALLS ONE END OF WHICH EXTENDS INTO THE CYLINDER AND INCLUDES AN AXIALLY EXTENDING RECESS THEREIN, A PISTON SECURED TO SAID ONE END OF SAID PISTON ROD FOR RECIPROCAL MOVEMENT WITHIN SAID CYLINDER, AND CUSHIONING MEANS FOR SAID PISTON OPERABLE OVER SUBSTANTIALLY THE ENTIRE STROKE OF THE PISTON INCLUDING A SUPPORT ROD ONE END OF WHICH IS SUPPORTED FOR TELESCOPIC MOVEMENT WITHIN THE RECESS IN THE ONE END OF THE PISTON ROD, A CUSHIONING PLATE SECURED TO THE OTHER END OF THE SUPPORT ROD EXTERIOR OF THE RECESS ADAPTED TO CLOSE SAID PASSAGE IN SAID ONE END
Claim 2
Dependent Claim
128 words
A CYLINDER INCLUDING A PAIR OF OPPOSITE END WALLS ONE OF WHICH INCLUDES AN ESCAPE PASSAGE FOR PISTON ACTUATING MEDIA, A PISTON ROD RECIPROCALLY MOUNTED IN THE OTHER OF SAID END WALLS ONE END OF WHICH EXTENDS INTO THE CYLINDER AND INCLUDES AN AXIALLY EXTENDING RECESS THEREIN, A PISTON SECURED TO SAID ONE END OF SAID PISTON ROD FOR RECIPROCAL MOVEMENT WITHIN SAID CYLINDER, AND CUSHIONING MEANS FOR SAID PISTON OPERABLE OVER SUBSTANTIALLY THE ENTIRE STROKE OF THE PISTON INCLUDING A SUPPORT ROD ONE END OF WHICH IS SUPPORTED FOR TELESCOPIC MOVEMENT WITHIN THE RECESS IN THE ONE END OF THE PISTON ROD, A CUSHIONING PLATE SECURED TO THE OTHER END OF THE SUPPORT ROD EXTERIOR OF THE RECESS ADAPTED TO CLOSE SAID PASSAGE IN SAID ONE END
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |