US3227094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure hydraulic pumps
Assignee: PROMECAN ETS
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Filing: 1963-06-25
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Granted: 1966-01-04
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Expires: 1983-06-25
Abstract
No abstract record available.
Inventors
- 👤 Cailloux Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:24
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/1002; F04B53/1007; F04B1/00; F04B1/04; F04B1/10; F04B19/00; F04B19/02; F04B19/027; F04B53/14; F04B9/00; F04B9/02; F04B9/04; F04B9/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A HIGH PRESSURE HYDRAULIC PUMP COMPRISING, IN COMBINATION, A STATIONARY CYLINDER HEAD FORMING A CHAMBER HAVING AN OPEN END AND A SPHERICAL SEAT ABOUT SAID OPEN END; A CYLINDER HAVING A CLOSED END AND AN OPPOSITE OPEN END AND BEING FORMED AT SAID CLOSED END WITH A PASSAGE THERETHROUGH COMMUNICATING WITH SAID CHAMBER AND HAVING AT SAID CLOSED END ABOUT SAID PASSAGE A COMPLEMENTARY SPHERICAL SEAT ENGAGING SAID SPHERICAL SEAT OF SAID CYLINDER HEAD SO THAT SAID CYLINDER IS UNIVERSALLY TILTABLE WITH RESPECT TO SAID SYLINDER HEAD; A PISTON EXTENDING WITH ONE END THEREOF INTO SAID CYLINDER AND BEING SUBSTANTIALLY FLUIDTIGHTLY GUIDED THEREIN; ROTATABLE ECCENTRIC MEANS OPERATIVELY CONNECTED TO THE OTHER END OF SAID PISTON FOR RECIPROCATING SAID PISTON RELATIVE TO SAID CYLINDER AND FOR TILTING THEREBY SAID PISTON AND SAID CYLINDER THROUGH A LIMITED ANGLE OF SUCH A SIZE THAT SAID PASSAGE WILL ALWAYS REMAIN IN FULL COMMUNICATION WITH SAID OPEN END OF SAID CHAMBER; AN OUTLET PASSAGE COMMUNICATING WITH SAID CHAMBER; AN INLET PASSAGE COMMUNICATING WITH SAID CHAMBER; ONEWAY VALVE MEANS IN SAID OUTLET PASSAGE PERMITTING FLOW OF FLUID FROM SAID CHAMBER THROUGH SAID OUTLET PASSAGE WHILE
Claim 2
Dependent Claim
189 words
A HIGH PRESSURE HYDRAULIC PUMP COMPRISING, IN COMBINATION, A STATIONARY CYLINDER HEAD FORMING A CHAMBER HAVING AN OPEN END AND A SPHERICAL SEAT ABOUT SAID OPEN END; A CYLINDER HAVING A CLOSED END AND AN OPPOSITE OPEN END AND BEING FORMED AT SAID CLOSED END WITH A PASSAGE THERETHROUGH COMMUNICATING WITH SAID CHAMBER AND HAVING AT SAID CLOSED END ABOUT SAID PASSAGE A COMPLEMENTARY SPHERICAL SEAT ENGAGING SAID SPHERICAL SEAT OF SAID CYLINDER HEAD SO THAT SAID CYLINDER IS UNIVERSALLY TILTABLE WITH RESPECT TO SAID SYLINDER HEAD; A PISTON EXTENDING WITH ONE END THEREOF INTO SAID CYLINDER AND BEING SUBSTANTIALLY FLUIDTIGHTLY GUIDED THEREIN; ROTATABLE ECCENTRIC MEANS OPERATIVELY CONNECTED TO THE OTHER END OF SAID PISTON FOR RECIPROCATING SAID PISTON RELATIVE TO SAID CYLINDER AND FOR TILTING THEREBY SAID PISTON AND SAID CYLINDER THROUGH A LIMITED ANGLE OF SUCH A SIZE THAT SAID PASSAGE WILL ALWAYS REMAIN IN FULL COMMUNICATION WITH SAID OPEN END OF SAID CHAMBER; AN OUTLET PASSAGE COMMUNICATING WITH SAID CHAMBER; AN INLET PASSAGE COMMUNICATING WITH SAID CHAMBER; ONEWAY VALVE MEANS IN SAID OUTLET PASSAGE PERMITTING FLOW OF FLUID FROM SAID CHAMBER THROUGH SAID OUTLET PASSAGE WHILE
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |