US3108544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pumps
Assignee: American Brake Shoe Co
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Filing: 1960-04-25
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Granted: 1963-10-29
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Expires: 1980-04-25
Abstract
No abstract record available.
Inventors
- 👤 Gabriel V Pesce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:24
CPC Classifications
F; F04; F04B; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/106; F04B1/00; F04B1/12; F04B1/20; F04B1/2014; F04B1/2064
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A HYDRAULIC PUMP COMPRISING: AN OUTLET CASING PROVIDED WITH MEANS AFFORDING INLET AND OUTLET PORTS AND WHEREIN THE MEANS AFFORDING THE INLET PORT IS INCLUSIVE OF UPSTREAM AND DOWNSTREAM PORTIONS; A CYLINDER BARREL ROTATABLE WITHIN THE OUTER CASING AND FORMED WITH A PLURALITY OF AXIALLY EXTENDING BORES, WHICH BORES ARE PLACED IN ALTERNATE COMMUNICATION WITH THE OUTLET PORT AND WITH THE DOWNSTREAM PORTION OF THE INLET PORT BY ROTATION OF THE CYLINDER BARREL, SAID CYLINDER BARREL ALSO HAVING PASSAGEWAYS FORMED THEREIN BETWEEN A PAIR OF ADJACENT BORES, WHICH PASSAGEWAYS EXTEND GENERALLY RADIALLY OUTWARDLY FROM A FIRST CHAMBER DISPOSED GENERALLY CENTRALLY WITHIN THE BARREL TO A SECOND CHAMBER DISPOSED BETWEEN THE BARREL AND CASING, PISTON MEMBERS SLIDABLY DISPOSED WITHIN SAID BORES AND HAVING FREE ENDS PROJECTING FROM A FACE OF SAID CYLINDER BLOCKS; AN INCLINED PLATE MEMBER ENGAGEABLE WITH THE FREE ENDS OF SAID PISTON MEMBERS FOR RECIPROCATING SAID PISTON MEMBER
Claim 2
Dependent Claim
150 words
A HYDRAULIC PUMP COMPRISING: AN OUTLET CASING PROVIDED WITH MEANS AFFORDING INLET AND OUTLET PORTS AND WHEREIN THE MEANS AFFORDING THE INLET PORT IS INCLUSIVE OF UPSTREAM AND DOWNSTREAM PORTIONS; A CYLINDER BARREL ROTATABLE WITHIN THE OUTER CASING AND FORMED WITH A PLURALITY OF AXIALLY EXTENDING BORES, WHICH BORES ARE PLACED IN ALTERNATE COMMUNICATION WITH THE OUTLET PORT AND WITH THE DOWNSTREAM PORTION OF THE INLET PORT BY ROTATION OF THE CYLINDER BARREL, SAID CYLINDER BARREL ALSO HAVING PASSAGEWAYS FORMED THEREIN BETWEEN A PAIR OF ADJACENT BORES, WHICH PASSAGEWAYS EXTEND GENERALLY RADIALLY OUTWARDLY FROM A FIRST CHAMBER DISPOSED GENERALLY CENTRALLY WITHIN THE BARREL TO A SECOND CHAMBER DISPOSED BETWEEN THE BARREL AND CASING, PISTON MEMBERS SLIDABLY DISPOSED WITHIN SAID BORES AND HAVING FREE ENDS PROJECTING FROM A FACE OF SAID CYLINDER BLOCKS; AN INCLINED PLATE MEMBER ENGAGEABLE WITH THE FREE ENDS OF SAID PISTON MEMBERS FOR RECIPROCATING SAID PISTON MEMBER
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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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |