US3246575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid motor
Assignee: MILL AND MINE SERVICES Inc A CORP OF
•
Filing: 1962-12-12
•
Granted: 1966-04-19
•
Expires: 1982-12-12
Abstract
No abstract record available.
Inventors
- 👤 Robert E Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:57
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/02; F03C1/06; F03C1/061; F03C1/0615
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN A FLUID MOTOR THE COMBINATION OF HOUSING MEANS; A CYLINDER BARREL DISPOSED IN SAID HOUSING MEANS AND INCLUDING A PLURALITY OF CYLINDERS, SAID CYLINDER BARREL INCLUDING A TIMING VALVE CHAMBER AND CYLINDER BARREL INTAKE AND OUTLET PORTS; A PLURALITY OF PISTONS DISPOSED IN SAID CYLINDERS; A PLURALITY OF REACTION PLUGS HAVING INNER ENDS SLIDEABLY DISPOSED IN SAID CYLINDERS AND OUTER ENDS FREELY ENGAGING SAID HOUSING MEANS; SHAFT MEANS ROTATABLY SUPPORTED BY SAID HOUSING MEANS AND INCLUDING A CAM IN DRIVEN ENGAGEMENT WITH SAID PISTONS; TIMING VALVE MEANS DISPOSED IN SAID VALVE CHAMBER AND DRIVEN BY SAID SHAFT MEANS; A PLURALITY OF AXIALLY EXTENDING REMOVABLE BARREL BEARING MEMBERS REMOVABLY SUPPORTING SAID CYLINDER BARREL IN SAID HOUSING MEANS; AND A HOLLOW MEMBER MOUNTED IN SAID HOUSING MEANS AND IN ENGAGEMENT WITH SAID CYLINDER BARREL FOR TRANSFERRING FLUID BETWEEN SAID CYLINDER BARREL AND THE EXTERIOR OF SAID HOUSING MEANS.
Claim 2
Dependent Claim
147 words
IN A FLUID MOTOR THE COMBINATION OF HOUSING MEANS; A CYLINDER BARREL DISPOSED IN SAID HOUSING MEANS AND INCLUDING A PLURALITY OF CYLINDERS, SAID CYLINDER BARREL INCLUDING A TIMING VALVE CHAMBER AND CYLINDER BARREL INTAKE AND OUTLET PORTS; A PLURALITY OF PISTONS DISPOSED IN SAID CYLINDERS; A PLURALITY OF REACTION PLUGS HAVING INNER ENDS SLIDEABLY DISPOSED IN SAID CYLINDERS AND OUTER ENDS FREELY ENGAGING SAID HOUSING MEANS; SHAFT MEANS ROTATABLY SUPPORTED BY SAID HOUSING MEANS AND INCLUDING A CAM IN DRIVEN ENGAGEMENT WITH SAID PISTONS; TIMING VALVE MEANS DISPOSED IN SAID VALVE CHAMBER AND DRIVEN BY SAID SHAFT MEANS; A PLURALITY OF AXIALLY EXTENDING REMOVABLE BARREL BEARING MEMBERS REMOVABLY SUPPORTING SAID CYLINDER BARREL IN SAID HOUSING MEANS; AND A HOLLOW MEMBER MOUNTED IN SAID HOUSING MEANS AND IN ENGAGEMENT WITH SAID CYLINDER BARREL FOR TRANSFERRING FLUID BETWEEN SAID CYLINDER BARREL AND THE EXTERIOR OF SAID HOUSING MEANS.
References Cited (Backward Citations)
US2454563A
Cited
US2385990A
Cited
US2518618A
Cited
US2620738A
Cited
US2990781A
Cited
US3036558A
Cited
US2984223A
Cited
US3056387A
Cited
US3090313A
Cited
US3082693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |