US3090322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil pump
Assignee: AAPCD Automotive Inc
•
Filing: 1961-10-06
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Granted: 1963-05-21
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Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Mettersheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:34
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/10; F04C2/101; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49236; Y10T29/49238; Y10T29/49718; Y10T29/49721; Y10T29/49723; Y10T29/49725; Y10T29/49726
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
IN A PROCESS FOR REBUILDING GEAR PUMPS HAVING A METAL PUMP HOUSING WITH A DRIVE SHAFT JOURNAL IN A CENTRAL HUB OF SAID HOUSING, THE AXIAL HOLE OF SAID DRIVE SHAFT JOURNAL COMMUNICATING WITH AN OFF-CENTER RECESS IN THE FACE OF SAID HOUSING, IN WHICH RECESS ROTATES A PINION GEAR AND AN INTERNAL RING GEAR DRIVEN BY SAID PINION GEAR, A CRESCENT-SHAPED MEMBER IN SAID RECESS BETWEEN SAID GEARS, AND SAID PINION GEAR ROTATES IN CLOSE PROXIMITY TO THE INNER CURVED FACE OF SAID CRESCENT-SHAPED MEMBER AND SAID RING GEAR ROTATES IN CLOSE PROXIMITY TO THE OUTER, CURVED FACE OF SAID CRESCENT-SHAPED MEMBER, SAID INNER FACE BEING WORN, THE STEPS COMPRISING MACHINING OFF OF SAID INNER FACE A PREDETERMINED AMOUNT OF SAID CRESCENT, SECURING AN ARCUATE LINER TO SAID MACHINED INNER FACE TO BRING THE CRESCENT-SHAPED MEMBER PLUS LINER TO AN OVERSIZED CONDITION, MACHINING SAID LINER TO A RADIUS OF CURVATURE CORRESPONDING TO THE RADIUS OF CURVATURE OF THE INNER FACE OF THE ORIGINAL CRESCENT-SHAPED MEMBER, REBORING THE AXIAL HOLE IN SAID HUB, AND MOUNTING A CYLINDRICAL BUSHING IN SAID REBORED AXIAL HOLE.
Claim 2
Dependent Claim
183 words
IN A PROCESS FOR REBUILDING GEAR PUMPS HAVING A METAL PUMP HOUSING WITH A DRIVE SHAFT JOURNAL IN A CENTRAL HUB OF SAID HOUSING, THE AXIAL HOLE OF SAID DRIVE SHAFT JOURNAL COMMUNICATING WITH AN OFF-CENTER RECESS IN THE FACE OF SAID HOUSING, IN WHICH RECESS ROTATES A PINION GEAR AND AN INTERNAL RING GEAR DRIVEN BY SAID PINION GEAR, A CRESCENT-SHAPED MEMBER IN SAID RECESS BETWEEN SAID GEARS, AND SAID PINION GEAR ROTATES IN CLOSE PROXIMITY TO THE INNER CURVED FACE OF SAID CRESCENT-SHAPED MEMBER AND SAID RING GEAR ROTATES IN CLOSE PROXIMITY TO THE OUTER, CURVED FACE OF SAID CRESCENT-SHAPED MEMBER, SAID INNER FACE BEING WORN, THE STEPS COMPRISING MACHINING OFF OF SAID INNER FACE A PREDETERMINED AMOUNT OF SAID CRESCENT, SECURING AN ARCUATE LINER TO SAID MACHINED INNER FACE TO BRING THE CRESCENT-SHAPED MEMBER PLUS LINER TO AN OVERSIZED CONDITION, MACHINING SAID LINER TO A RADIUS OF CURVATURE CORRESPONDING TO THE RADIUS OF CURVATURE OF THE INNER FACE OF THE ORIGINAL CRESCENT-SHAPED MEMBER, REBORING THE AXIAL HOLE IN SAID HUB, AND MOUNTING A CYLINDRICAL BUSHING IN SAID REBORED AXIAL HOLE.
References Cited (Backward Citations)
US1322245A
Cited
US755631A
Cited
US1382580A
Cited
US1604802A
Cited
US1842441A
Cited
US2134153A
Cited
US2407904A
Cited
US2519557A
Cited
US3008425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |