US3230889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Venturi fluid pumps
Assignee: Ford Motor Co
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Filing: 1964-06-29
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Granted: 1966-01-25
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Richard D Brewer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:39
CPC Classifications
F; F04; F04F; F04F7/00; F02; F02B; F02B1/00; F02M; F02M1/00; F04B; F04B17/00; F04B17/03; F04B17/04; F04B17/042; F04B43/00; F04B43/02; F04B43/04; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/438; F02M2700/4388; F02M2700/439
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
A PUMP COMPRISING A CASING HAVING A CAVITY OPENING INTO A VENTURI, A DIAPHRAGM EXTENDING ACROSS SAID CAVITY AND DEFINING FIRST AND SECOND FLUID CHAMBERS, MEANS PROVIDING FLUID COMMUNICATION BETWEEN THE FIRST OF SAID FLUID CHAMBERS AND SAID VENTURI ON ONE SIDE OF ITS THROAT, SAID SECOND FLUID CHAMBER BEING IN OPEN COMMUNICATION WITH SAID VENTURI ON THE OTHER SIDE OF SAID THROAT, FLUID INLET MEANS EXTENDING FROM A FLUID SOURCE TO SAID VENTURI AT ITS THROAT, FLUID OUTLET MEANS EXTENDING FROM SAID VENTURI AT A POINT REMOTE FROM SAID THROAT, A FERROMAGNETIC MEMBER AFFIXED TO SAID DIAPHRAGM, A COIL POSITIONED ADJACENT SAID FERROMAGNETIC MEMBER, AND MEANS FOR ALTERNATELY CAUSING CURRENT FLOW THROUGH SAID
References Cited (Backward Citations)
US2312712A
Cited
US2461611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |