Patent US3269327A successfully refreshed from Google Patents.
US3269327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure loaded gear pump
Assignee: Borg Warner Corp
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Filing: 1964-11-04
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Granted: 1966-08-30
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Expires: 1984-11-04
Abstract
No abstract record available.
Inventors
- 👤 Francis E Norlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:33
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0003; F04C15/0023; F04C15/0026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A GEAR PUMP COMPRISING: A HOUSING, SAID HOUSING CONTAINING PUMPING CHAMBER; AN INLET LEADING TO AND AN OUTLET LEADING FROM SAID PUMPING CHAMBERS; ROTATABLE INTERMESHING PUMPING GEARS DISPOSED IN SAID PUMPING CHAMBERS FOR DRAWING FLUID FROM SAID INLET, PRESSURIZING THE FLUID, AND FORCING IT OUT SAID OUTLET UNDER PRESSURE; SAID GEARS PROVIDED WITH AXIALLY EXTENDING JOURNALS; STATIC BODY BEARINGS AND AXIALLY MOVABLE PRESSURE LOADABLE BEARINGS DISPOSED IN SAID HOUSING FOR ROTATABLY SUPPORTING SAID AXIALLY EXTENDING JOURNALS; EACH OF SAID GEARS HAVING A STATIC BODY BEARING AND AN AXIALLY MOVABLE PRESSURE LOADABLE BEARING ASSOCIATED THEREWITH, THE AXIALLY MOVABLE BEARING ADAPTED TO BE AXIALLY MOVED ALONG ONE OF SAID JOURNALS INTO SEALING ENGAGEMENT WITH SAID GEARS; AND EACH OF SAID AXIALLY MOVABLE BEARINGS BEING MOUNTED WITHIN AND CARRIED BY A STATIC BODY BEARING.
Claim 2
Dependent Claim
131 words
A GEAR PUMP COMPRISING: A HOUSING, SAID HOUSING CONTAINING PUMPING CHAMBER; AN INLET LEADING TO AND AN OUTLET LEADING FROM SAID PUMPING CHAMBERS; ROTATABLE INTERMESHING PUMPING GEARS DISPOSED IN SAID PUMPING CHAMBERS FOR DRAWING FLUID FROM SAID INLET, PRESSURIZING THE FLUID, AND FORCING IT OUT SAID OUTLET UNDER PRESSURE; SAID GEARS PROVIDED WITH AXIALLY EXTENDING JOURNALS; STATIC BODY BEARINGS AND AXIALLY MOVABLE PRESSURE LOADABLE BEARINGS DISPOSED IN SAID HOUSING FOR ROTATABLY SUPPORTING SAID AXIALLY EXTENDING JOURNALS; EACH OF SAID GEARS HAVING A STATIC BODY BEARING AND AN AXIALLY MOVABLE PRESSURE LOADABLE BEARING ASSOCIATED THEREWITH, THE AXIALLY MOVABLE BEARING ADAPTED TO BE AXIALLY MOVED ALONG ONE OF SAID JOURNALS INTO SEALING ENGAGEMENT WITH SAID GEARS; AND EACH OF SAID AXIALLY MOVABLE BEARINGS BEING MOUNTED WITHIN AND CARRIED BY A STATIC BODY BEARING.
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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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |