Patent US3345916A successfully refreshed from Google Patents.
US3345916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High efficiency hydraulic apparatus
Assignee: Individual
•
Filing: 1965-11-17
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Granted: 1967-10-10
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Expires: 1985-11-17
Abstract
No abstract record available.
Inventors
- 👤 Tobias Jaromir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:29
CPC Classifications
F; F01; F01B; F01B13/00; F01B13/04; F01B13/06; F01B13/061; F01B1/00; F01B1/06; F01B1/0641; F01B1/0644; F01B1/0655; F01B1/0675; F01B1/0686; F01B1/0689
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A ROTARY HYDRAULIC DEVICE SUCH AS A PUMP OR MOTOR, A GENERALLY CYLINDRICAL PINTLE SHAFT HAVING AN AXIALLY ELONGAGED, RECESSED CIRCUMFERENCE PORTION DEFINING A FLUID SUPPLY AREA, A CYLINDER BLOCK HAVING A CENTRAL BEARING APERTURE ROTATABLY RECEIVED ON SAID SHAFT, THE AXIAL DIMENSION OF SAID APERTURE BEING IN EXCESS OF THE LENGTH OF SAID RECESSED PORTION, SAID APERTURE BEING DISPOSED IN REGISTRY WITH SAID AREA, A PLURALITY OF RADIALLY EXTENDING CYLINDER BORES FORMED IN SAID BLOCK, AND AXIALLY ELONGAGED FLUID PASSAGES EXTENDING BETWEEN SAID BORES AND SAID APERTURE, THE AXIAL DIMENSION OF SAID PASSAGES AT SAID APERTURE, BEING GREATER THAN THE DIAMETER OF SAID BORES, THE TRANSVERSE DIMENSION OF SAID PASSAGES AT SAID BORES BEING GREATER THAN THE TRANSVERSE DIMENSION OF SAID PASSAGES AT SAID APERTURE.
Claim 2
Dependent Claim
127 words
IN A ROTARY HYDRAULIC DEVICE SUCH AS A PUMP OR MOTOR, A GENERALLY CYLINDRICAL PINTLE SHAFT HAVING AN AXIALLY ELONGAGED, RECESSED CIRCUMFERENCE PORTION DEFINING A FLUID SUPPLY AREA, A CYLINDER BLOCK HAVING A CENTRAL BEARING APERTURE ROTATABLY RECEIVED ON SAID SHAFT, THE AXIAL DIMENSION OF SAID APERTURE BEING IN EXCESS OF THE LENGTH OF SAID RECESSED PORTION, SAID APERTURE BEING DISPOSED IN REGISTRY WITH SAID AREA, A PLURALITY OF RADIALLY EXTENDING CYLINDER BORES FORMED IN SAID BLOCK, AND AXIALLY ELONGAGED FLUID PASSAGES EXTENDING BETWEEN SAID BORES AND SAID APERTURE, THE AXIAL DIMENSION OF SAID PASSAGES AT SAID APERTURE, BEING GREATER THAN THE DIAMETER OF SAID BORES, THE TRANSVERSE DIMENSION OF SAID PASSAGES AT SAID BORES BEING GREATER THAN THE TRANSVERSE DIMENSION OF SAID PASSAGES AT SAID APERTURE.
References Cited (Backward Citations)
US1413388A
Cited
US1983261A
Cited
US2205913A
Cited
US2273468A
Cited
US2510247A
Cited
GB583396A
Cited
US3044412A
Cited
US3034451A
Cited
US3211105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |