US3606592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pump
Assignee: Bendix Corp
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Filing: 1970-05-20
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Granted: 1971-09-20
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Expires: 1990-05-20
Abstract
Abstract A DISPLACEMENT ELEMENT FOR A FLUID PUMP COMPRISED OF OPPOSED, CONNECTED MEMBERS OF A MEMORY HEAT TREATABLE MATERIAL SUCH AS 55-NITINOL WITH AN ELECTRICAL CONTROL CIRCUIT USED TO ALTERNATELY CAUSE EACH OF THE MEMBERS TO ASSUME ITS MEMORY HEAT TREATED CONFIGURATION, THEREBY CAUSING CYCLICAL MOVEMENT OF THE MEMBERS. THIS MOVEMENT IS UTILIZED TO CREATE THE PUMPING ACTION BY EMBEDDING THESE ELEMENTS IN A DIAPHRAGM ELEMENT TO CREATE A DIAPHRAGM PUMP.
Inventors
- 👤 Joseph P Madurski
- 👤 Ambrose Tomala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:23
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/023; A; A61; A61M; A61M60/00; A61M60/10; A61M60/104; A61M60/117; A61M60/40; A61M60/424; A61M60/438; A61M60/451; A61M60/80; A61M60/835; A61M60/837; A61M60/855; A61M60/89; A61M60/894; F04B43/0009; F04B43/0054; F04B43/04; F04B43/043; A61M60/122; A61M60/126; A61M60/148; A61M60/20; A61M60/247; A61M60/253; A61M60/268
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |