US3130646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable cylinder end stop
Assignee: Doosan Bobcat North America Inc
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Filing: 1962-03-12
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Granted: 1964-04-28
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Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Harold W Pennington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:25
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A CYLINDER-PISTON CONSTRUCTION COMPRISING AN INTERNALLY THREADED CYLINDER WALL AT AT LEAST ONE END OF THE CYLINDER, AND AN ADJUSTABLE PISTON STOP ASSEMBLY INCLUDING AN EXTERNALLY THREADED CYLINDER GLAND THREADEDLY ENGAGEABLE WITH THE THREADED END OF THE CYLINDER AND ADJUSTABLE TO A DESIRED POSITION WHOLLY WITHIN SAID CYLINDER TO PROVIDE STOP MEANS FOR THE PISTON, AN END CAP OVERLAPPING THE THREADED END OF THE CYLINDER WALL, A PLURALITY OF ALIGNABLE OPENINGS IN THE GLAND AND CAP, AND SECURING MEANS REGISTRABLE WITH SAID ALIGNED OPENINGS IN BOTH THE GLAND AND CAP FOR HOLDING THE THREADS OF THE GLAND IN RIGID ABUTMENT WITH THE THREADS OF THE CYLINDER AND THE CAP IN RIGID ABUTMENT WITH THE END WALL OF THE CYLINDER.
Claim 2
Dependent Claim
119 words
A CYLINDER-PISTON CONSTRUCTION COMPRISING AN INTERNALLY THREADED CYLINDER WALL AT AT LEAST ONE END OF THE CYLINDER, AND AN ADJUSTABLE PISTON STOP ASSEMBLY INCLUDING AN EXTERNALLY THREADED CYLINDER GLAND THREADEDLY ENGAGEABLE WITH THE THREADED END OF THE CYLINDER AND ADJUSTABLE TO A DESIRED POSITION WHOLLY WITHIN SAID CYLINDER TO PROVIDE STOP MEANS FOR THE PISTON, AN END CAP OVERLAPPING THE THREADED END OF THE CYLINDER WALL, A PLURALITY OF ALIGNABLE OPENINGS IN THE GLAND AND CAP, AND SECURING MEANS REGISTRABLE WITH SAID ALIGNED OPENINGS IN BOTH THE GLAND AND CAP FOR HOLDING THE THREADS OF THE GLAND IN RIGID ABUTMENT WITH THE THREADS OF THE CYLINDER AND THE CAP IN RIGID ABUTMENT WITH THE END WALL OF THE CYLINDER.
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |