Patent US3107630A successfully refreshed from Google Patents.
US3107630A
Expired / Lapsed
US
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Non-magnetic electro-hydraulic pump
Assignee: Textron Inc
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Filing: 1959-09-08
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Granted: 1963-10-22
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Expires: 1979-09-08
Abstract
No abstract record available.
Inventors
- 👤 Robert R Johnson
- 👤 Robert J Stahl
- 👤 Glenn A Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:13
CPC Classifications
F; F04; F04B; F04B17/00; F04B17/003; Y; Y10; Y10S; Y10S60/00; Y10S60/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PUMP COMPRISING A PUMP HOUSING HAVING A CYLINDRICAL CAVITY, TWO VIBRATORY DIAPHRAGMS THAT DEFORM ELASTICALLY UNDER ELECTRIC STRESS, SAID DIAPHRAGMS EXTENDING TRANSVERSELY ACROSS SAID CAVITY PARALLEL TO EACH OTHER AND ENCLOSING A PUMPING CHAMBER BETWEEN THE DIAPHRAGMS, EACH OF SAID DIAPHRAGMS HAVING A CENTRAL APERTURE DEFINING A FLUID PASSAGEWAY INTO SAID CHAMBER STATIONARY OBSTRUCTING MEANS IN SAID HOUSING AXIALLY ALIGNED WITH AND PARTIALLY BLOCKING EACH OF SAID APERTURES TO PROVIDE A RESISTANCE TO FLUID FLOW WHICH VARIES CYCLICALLY WITH VIBRATION OF THE DIAPHRAGM, AND MEANS SUPPLYING OUT-OFPHASE VARIABLE VOLTAGES TO SAID DIAPHRAGMS FOR VIBRATING SAID DIAPHRAGMS IN OUT-OF-PHASE RELATION WITH EACH OTHER.
Claim 2
Dependent Claim
103 words
A PUMP COMPRISING A PUMP HOUSING HAVING A CYLINDRICAL CAVITY, TWO VIBRATORY DIAPHRAGMS THAT DEFORM ELASTICALLY UNDER ELECTRIC STRESS, SAID DIAPHRAGMS EXTENDING TRANSVERSELY ACROSS SAID CAVITY PARALLEL TO EACH OTHER AND ENCLOSING A PUMPING CHAMBER BETWEEN THE DIAPHRAGMS, EACH OF SAID DIAPHRAGMS HAVING A CENTRAL APERTURE DEFINING A FLUID PASSAGEWAY INTO SAID CHAMBER STATIONARY OBSTRUCTING MEANS IN SAID HOUSING AXIALLY ALIGNED WITH AND PARTIALLY BLOCKING EACH OF SAID APERTURES TO PROVIDE A RESISTANCE TO FLUID FLOW WHICH VARIES CYCLICALLY WITH VIBRATION OF THE DIAPHRAGM, AND MEANS SUPPLYING OUT-OFPHASE VARIABLE VOLTAGES TO SAID DIAPHRAGMS FOR VIBRATING SAID DIAPHRAGMS IN OUT-OF-PHASE RELATION WITH EACH OTHER.
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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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |