US3345916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High efficiency hydraulic apparatus
Assignee: Individual
•
Filing: 1965-11-17
•
Granted: 1967-10-10
•
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 11:35
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.
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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 |