US3095002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry type hydraulic servo valve
Assignee: Bendix Corp
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Filing: 1961-06-20
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Granted: 1963-06-25
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Expires: 1981-06-20
Abstract
No abstract record available.
Inventors
- 👤 Donald V Healy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:29
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0682; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/042; F15B13/043; F15B13/0438; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/86614
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A SERVO VALVE COMPRISING: A HYDRAULIC HOUSING; A FLOW-CONTROL SYSTEM WITHIN SAID HOUSING INCLUDING A PAIR OF SUBSTANTIALLY PARALLEL DIRECTED NOZZLES AND AN ELONGATED BAFFLE HAVING SPACED PORTIONS POSITIONED TO VARY THE FLOW OF FLUID FROM RESPECTIVE NOZZLES; A MOTOR COMPARTMENT; MOTOR MEANS WITHIN SAID COMPARTMENT; MEANS SEALING SAID HYDRAULIC HOUSING FROM SAID MOTOR COMPARTMENT; SAID SEALING MEANS COMPRISING A NONRIGID TUBE WITH ONE END SEALED TO SAID HYDRAULIC HOUSING AND A SHAFT SEALING THE FREE END OF SAID TUBE AND EXTENDING THROUGH SAID TUBE; SAID SHAFT COUPLED TO A POINT MIDWAY BETWEEN THE SPACED PORTIONS TO TRANSMIT TORQUE FROM SAID MOTOR MEANS TO SAID BAFFLE TO VARY THE RELATIVE SPACING OF SAID BAFFLE SPACED PORTIONS WITH RESPECT TO SAID NOZZLES SIMULTANEOUSLY IN OPPOSITE SENSE; SAID TUBE AND SHAFT SUPPORTING SAID BAFFLE FOR SIMULTANEOUS TRANSLATION MOVEMENT IN THE SAME SENSE TOWARD AND AWAY FROM SAID NOZZLES IN RESPONSE TO FLUID PRESSURE CHANGES THEREAT.
Claim 2
Dependent Claim
153 words
A SERVO VALVE COMPRISING: A HYDRAULIC HOUSING; A FLOW-CONTROL SYSTEM WITHIN SAID HOUSING INCLUDING A PAIR OF SUBSTANTIALLY PARALLEL DIRECTED NOZZLES AND AN ELONGATED BAFFLE HAVING SPACED PORTIONS POSITIONED TO VARY THE FLOW OF FLUID FROM RESPECTIVE NOZZLES; A MOTOR COMPARTMENT; MOTOR MEANS WITHIN SAID COMPARTMENT; MEANS SEALING SAID HYDRAULIC HOUSING FROM SAID MOTOR COMPARTMENT; SAID SEALING MEANS COMPRISING A NONRIGID TUBE WITH ONE END SEALED TO SAID HYDRAULIC HOUSING AND A SHAFT SEALING THE FREE END OF SAID TUBE AND EXTENDING THROUGH SAID TUBE; SAID SHAFT COUPLED TO A POINT MIDWAY BETWEEN THE SPACED PORTIONS TO TRANSMIT TORQUE FROM SAID MOTOR MEANS TO SAID BAFFLE TO VARY THE RELATIVE SPACING OF SAID BAFFLE SPACED PORTIONS WITH RESPECT TO SAID NOZZLES SIMULTANEOUSLY IN OPPOSITE SENSE; SAID TUBE AND SHAFT SUPPORTING SAID BAFFLE FOR SIMULTANEOUS TRANSLATION MOVEMENT IN THE SAME SENSE TOWARD AND AWAY FROM SAID NOZZLES IN RESPONSE TO FLUID PRESSURE CHANGES THEREAT.
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |