Patent US3096721A successfully refreshed from Google Patents.
US3096721A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel pump
Assignee: ACF Industries Inc
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Filing: 1961-08-14
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Granted: 1963-07-09
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Expires: 1981-08-14
Abstract
No abstract record available.
Inventors
- 👤 Jack M White
- 👤 Eldon A Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:29
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/04; F02M59/00; F02M59/12; F02M59/14; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1323
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A DIAPHRAGM PUMP COMPRISING A CUP-SHAPED SHEET METAL BODY HAVING AN END AND A PERIPHERAL WALL DEFINING A PUMPING CHAMBER AND HAVING A PAIR OF CUP-SHAPED PROJECTIONS EXTENDING FROM ITS END WALL DEFINING AN INTAKE CAVITY AND A DISCHARGE CAVITY RESPECTIVELY OPENING INTO SAID PUMPING CHAMBER, A DIAPHRAGM CLOSING THE PUMPING CHAMBER, THE INTAKE CAVITY HAVING AN INTAKE CHECK VALVE THEREIN AND BEING ADAPTED FOR CONNECTION OF A SUPPLY LINE THERETO UPSTREAM FROM THE INTAKE CHECK VALVE, THE DISCHARGE CAVITY HAVING A DISCHARGE CHECK VALVE FITTED THEREIN AND BEING ADAPTED FOR CONNECTION OF A DISCHARGE LINE THERETO DOWNSTREAM FROM THE DISCHARGE CHECK VALVE, AND MEANS COMPRISING A TUBULAR STEM AND A HEAD ON THE STEM ARRANGED AXIALLY IN THE DISCHARGE CAVITY DOWNSTREAM FROM THE DISCHARGE CHECK VALVE PROVIDING AN ANNULAR SURGE CHAMBER AROUND THE TUBULAR STEM IN THE DISCHARGE CAVITY.
Claim 2
Dependent Claim
140 words
A DIAPHRAGM PUMP COMPRISING A CUP-SHAPED SHEET METAL BODY HAVING AN END AND A PERIPHERAL WALL DEFINING A PUMPING CHAMBER AND HAVING A PAIR OF CUP-SHAPED PROJECTIONS EXTENDING FROM ITS END WALL DEFINING AN INTAKE CAVITY AND A DISCHARGE CAVITY RESPECTIVELY OPENING INTO SAID PUMPING CHAMBER, A DIAPHRAGM CLOSING THE PUMPING CHAMBER, THE INTAKE CAVITY HAVING AN INTAKE CHECK VALVE THEREIN AND BEING ADAPTED FOR CONNECTION OF A SUPPLY LINE THERETO UPSTREAM FROM THE INTAKE CHECK VALVE, THE DISCHARGE CAVITY HAVING A DISCHARGE CHECK VALVE FITTED THEREIN AND BEING ADAPTED FOR CONNECTION OF A DISCHARGE LINE THERETO DOWNSTREAM FROM THE DISCHARGE CHECK VALVE, AND MEANS COMPRISING A TUBULAR STEM AND A HEAD ON THE STEM ARRANGED AXIALLY IN THE DISCHARGE CAVITY DOWNSTREAM FROM THE DISCHARGE CHECK VALVE PROVIDING AN ANNULAR SURGE CHAMBER AROUND THE TUBULAR STEM IN THE DISCHARGE CAVITY.
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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |