Patent US2004606A successfully refreshed from Google Patents.
Patent US3209701A successfully refreshed from Google Patents.
US3209701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Sundstrand Corp
•
Filing: 1962-10-05
•
Granted: 1965-10-05
•
Expires: 1982-10-05
Abstract
No abstract record available.
Inventors
- 👤 Damon D Phinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:09
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/14; F04B1/141; F04B1/143; F04B1/122; F04B1/146; F04B1/148; F04B53/00; F04B53/10; F04B53/12; F04B53/125; F04B53/129; F04B53/16; F04B53/162; F04B53/164
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN A SWASHPLATE-PISTON PUMP WHEREIN PUMPING ACTION IS ACHIEVED BY ACTION OF AN INCLINED SWASHPLATE DRIVING A PLURALITY OF PISTONS SLIDABLY MOUNTED IN ANNULAR ARRAY IN AXIAL CYLINDERS OF THE CYLINDER BLOCK AND WHEREIN THE DRIVING IS A RESULT OF INCLINATION OF THE SWASHPLATE RELATIVE TO THE AXIS OF THE ARRAY OF CYLINDERS, THE IMPROVEMENT COMPRISING CROSSHEAD MEANS BETWEEN SAID BLOCK AND SAID SWASHPLATE, SAID PISTONS SLIDABLY EXTENDING THROUGH SAID CROSSHEAD MEANS, SAID CROSS HEADS MEANS AND PISTONS BEING ADAPTED TO CONTAINE FLUID LUBRICANT ON THE SWASHPLATE OR NON-PUMPING SIDE OF SAID CROSS HEAD MEANS AND SEALING MEANS ON SAID CROSSHEAD T PREVENT LUBRICANT FROM CONTACTING THE CYLINDERS AND TO PREVENT THE FLUID BEING PUMPED FROM ENTERING THE CROSSHEAD AND EACH OF SAID CYLINDER MEANS BEING MOVABLE IN SAID BLOCK TRANSVERSELY TO THE RECIPROCAL PISTON AXIS RESPONSIVE TO SIDE LOADS BETWEEN PISTON AND CYLINDER MEANS AND EACH CYLINDER CONTAINING THE RECIPROCAL TRAVEL OF THE PUMPING END OF A PISTON.
Claim 2
Dependent Claim
159 words
IN A SWASHPLATE-PISTON PUMP WHEREIN PUMPING ACTION IS ACHIEVED BY ACTION OF AN INCLINED SWASHPLATE DRIVING A PLURALITY OF PISTONS SLIDABLY MOUNTED IN ANNULAR ARRAY IN AXIAL CYLINDERS OF THE CYLINDER BLOCK AND WHEREIN THE DRIVING IS A RESULT OF INCLINATION OF THE SWASHPLATE RELATIVE TO THE AXIS OF THE ARRAY OF CYLINDERS, THE IMPROVEMENT COMPRISING CROSSHEAD MEANS BETWEEN SAID BLOCK AND SAID SWASHPLATE, SAID PISTONS SLIDABLY EXTENDING THROUGH SAID CROSSHEAD MEANS, SAID CROSS HEADS MEANS AND PISTONS BEING ADAPTED TO CONTAINE FLUID LUBRICANT ON THE SWASHPLATE OR NON-PUMPING SIDE OF SAID CROSS HEAD MEANS AND SEALING MEANS ON SAID CROSSHEAD T PREVENT LUBRICANT FROM CONTACTING THE CYLINDERS AND TO PREVENT THE FLUID BEING PUMPED FROM ENTERING THE CROSSHEAD AND EACH OF SAID CYLINDER MEANS BEING MOVABLE IN SAID BLOCK TRANSVERSELY TO THE RECIPROCAL PISTON AXIS RESPONSIVE TO SIDE LOADS BETWEEN PISTON AND CYLINDER MEANS AND EACH CYLINDER CONTAINING THE RECIPROCAL TRAVEL OF THE PUMPING END OF A PISTON.
References Cited (Backward Citations)
US1274391A
Cited
US2238252A
Cited
US2374595A
Cited
US2433222A
Cited
US2669185A
Cited
US2797647A
Cited
US3018737A
Cited
GB830959A
Cited
US3067694A
Cited
US3090313A
Cited
US3160102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |