US3101651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating hydraulic motor
Assignee: Frank G Hough Co
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Filing: 1961-09-15
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Granted: 1963-08-27
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Expires: 1981-09-15
Abstract
No abstract record available.
Inventors
- 👤 Don S Strader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:20
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/1423; F15B15/1447; F15B15/1452
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A PISTON ASSEMBLY FOR A HYDRAULIC RECIPROCATING MOTOR COMPRISING, A PISTON ROD HAVING A CERTAIN DIAMETER, ONE END PORTION OF SAID PISTON ROD BEING FORMED OF A REDUCED DIAMETER, A PISTON HEAD FORMED OF A RELATIVELY SOFT BEARING METAL, SAID PISTON HEAD HAVING A HOLE AXIALLY THERETHROUGH OF A DIAMETER SUBSTANTIALLY EQUAL TO SAID REDUCED DIAMETER, A BOSS FORMED ON EACH SIDE OF SAID PISTON HEAD ABOUT SAID HOLE, EACH OF SAID BOSSES HAVING AN OUTER DIAMETER SUBATANTIALLY EQUAL TO SAID CERTAIN DIAMETER, SAID PISTON HEAD CARRIED ON SAID REDUCED END PORTION WITH THE BOSS ON ONE SIDE THEREOF ABUTTING THE SIDE WALL OF SAID PISTON ROD WHICH EXTENDS RADIALLY FROM REDUCED END PORTION TO SAID CERTAIN DIAMETER, A LOAD RING HAVING AN OUTER DIAMETER SUBSTANTIALLY EQUAL TO SAID CERTAIN DIAMETER, SAID LOAD RING CARRIED ON SAID REDUCED END PORTION AND ABUTTING THE BOSS ON THE OTHER SIDE OF SAID PISTON HEAD, AND MEANS FOR MAINTAINING SAID LOAD RING IN TIGHT ENGAGEMENT WITH SAID PISTON HEAD.
Claim 2
Dependent Claim
166 words
A PISTON ASSEMBLY FOR A HYDRAULIC RECIPROCATING MOTOR COMPRISING, A PISTON ROD HAVING A CERTAIN DIAMETER, ONE END PORTION OF SAID PISTON ROD BEING FORMED OF A REDUCED DIAMETER, A PISTON HEAD FORMED OF A RELATIVELY SOFT BEARING METAL, SAID PISTON HEAD HAVING A HOLE AXIALLY THERETHROUGH OF A DIAMETER SUBSTANTIALLY EQUAL TO SAID REDUCED DIAMETER, A BOSS FORMED ON EACH SIDE OF SAID PISTON HEAD ABOUT SAID HOLE, EACH OF SAID BOSSES HAVING AN OUTER DIAMETER SUBATANTIALLY EQUAL TO SAID CERTAIN DIAMETER, SAID PISTON HEAD CARRIED ON SAID REDUCED END PORTION WITH THE BOSS ON ONE SIDE THEREOF ABUTTING THE SIDE WALL OF SAID PISTON ROD WHICH EXTENDS RADIALLY FROM REDUCED END PORTION TO SAID CERTAIN DIAMETER, A LOAD RING HAVING AN OUTER DIAMETER SUBSTANTIALLY EQUAL TO SAID CERTAIN DIAMETER, SAID LOAD RING CARRIED ON SAID REDUCED END PORTION AND ABUTTING THE BOSS ON THE OTHER SIDE OF SAID PISTON HEAD, AND MEANS FOR MAINTAINING SAID LOAD RING IN TIGHT ENGAGEMENT WITH SAID PISTON HEAD.
References Cited (Backward Citations)
US2267882A
Cited
US2529053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |