US3259072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary fuel pump
Assignee: Motors Liquidation Co
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Filing: 1964-10-26
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Granted: 1966-07-05
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Expires: 1984-10-26
Abstract
No abstract record available.
Inventors
- 👤 Keith H Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:34
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/04; F02M37/048; F02M37/08; F02M37/10; F02M37/18; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/0653; F04D13/12; F04D5/00; F04D5/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A FUEL PUMP INCLUDING, A HOUSING, AN ELECTRIC MOTOR DISPOSED IN SAID HOUSING HAVING AN ARMATURE, A SHAFT CONNECTED TO SAID ARMATURE AND JOURNALLED IN SAID HOUSING, SAID HOUSING HAVING A PAIR OF CHAMBERS THEREIN SEPERATED BY A WALL WITH THE ARMATURE SHAFT EXTENDING THERETHROUGH, A PERIPHERAL PUMP IMPELLER DISPOSED IN ONE OF SAID CHAMBERS AND CONNECTED TO SAID ARMATURE SHAFT FOR ROTATION THEREWITH, A VOLUTE FORMED IN THE OTHER CHAMBER OF SAID HOUSING AND COACTING WITH SAID ARMATURE TO CONSTITUTE A CENTRIFUGAAL PUMP, AND PASSAGE MEANS IN SAID WALL INTERCONNECTING SAID VOLUTE AND SAID PERIPHERAL PUMP CHAMBER WHEREBY THE OUTPUT OF SAID CENTRIFUGAL PUMP MODIFIES THE OUTPUT CHARACTERISTICS OF SAID PERIPHERAL PUNP IN ACCORDANCE WITH THE OPERATING CONDITION THEREOF.
Claim 2
Dependent Claim
120 words
A FUEL PUMP INCLUDING, A HOUSING, AN ELECTRIC MOTOR DISPOSED IN SAID HOUSING HAVING AN ARMATURE, A SHAFT CONNECTED TO SAID ARMATURE AND JOURNALLED IN SAID HOUSING, SAID HOUSING HAVING A PAIR OF CHAMBERS THEREIN SEPERATED BY A WALL WITH THE ARMATURE SHAFT EXTENDING THERETHROUGH, A PERIPHERAL PUMP IMPELLER DISPOSED IN ONE OF SAID CHAMBERS AND CONNECTED TO SAID ARMATURE SHAFT FOR ROTATION THEREWITH, A VOLUTE FORMED IN THE OTHER CHAMBER OF SAID HOUSING AND COACTING WITH SAID ARMATURE TO CONSTITUTE A CENTRIFUGAAL PUMP, AND PASSAGE MEANS IN SAID WALL INTERCONNECTING SAID VOLUTE AND SAID PERIPHERAL PUMP CHAMBER WHEREBY THE OUTPUT OF SAID CENTRIFUGAL PUMP MODIFIES THE OUTPUT CHARACTERISTICS OF SAID PERIPHERAL PUNP IN ACCORDANCE WITH THE OPERATING CONDITION THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |