US3143929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Full power fluid pressure servomotor construction
Assignee: Bendix Corp
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Filing: 1962-01-02
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Granted: 1964-08-11
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Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 Robert R Hager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:18
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/46; B60T13/52; B60T13/563; B60T13/241; B60T13/242; B60T13/244
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A FLUID PRESSURE SERVOMOTOR: A SERVOMOTOR HOUSING HAVING A FORWARDLY AND REARWARDLY EXTENDING CHAMBER THEREIN, A TUBULAR CONTROL VALVE HOUSING IN SAID CHAMBER, SAID CONTROL VALVE HOUSING HAVING AN INTERNAL CONTROL CHAMBER OPENING OUT OF ITS FORWARD END, A STRUCTURE THE INTERNAL SIDEWALLS OF WHICH SURROUND THE FORWARD END OF SAID TUBULAR CONTROL VALVE HOUSING WITH THE INTERNAL BOTTOM SURFACE OF SAID STRUCTURE SPACED FORWARDLY OF SAID TUBULAR CONTROL VALVE HOUSING, A CONTROL MEMBER POSITIONED IN SAID CONTROL CHAMBER, SAID STRUCTURE HAVING A GENERALLY RADIALLY EXTENDING FLANGE SPACED RADIALLY OUTWARDLY OF SAID TUBULAR VALVE HOUSING, A DIAPHRAGM HAVING A RADIALLY INNER SECTION FASTENED TO SAID TUBULAR VALVE HOUSING, AN INTERMEDIATE SECTION FASTENED TO SAID FLANGE OF SAID STRUCTURE, AND AN OUTER SECTION FASTENED TO SAID SERVOMOTOR HOUSING IN SUCH MANNER AS TO ALLOW FORWARD AND REARWARD RELATIVE MOVEMENT BETWEEN SAID TUBULAR
Claim 2
Dependent Claim
142 words
IN A FLUID PRESSURE SERVOMOTOR: A SERVOMOTOR HOUSING HAVING A FORWARDLY AND REARWARDLY EXTENDING CHAMBER THEREIN, A TUBULAR CONTROL VALVE HOUSING IN SAID CHAMBER, SAID CONTROL VALVE HOUSING HAVING AN INTERNAL CONTROL CHAMBER OPENING OUT OF ITS FORWARD END, A STRUCTURE THE INTERNAL SIDEWALLS OF WHICH SURROUND THE FORWARD END OF SAID TUBULAR CONTROL VALVE HOUSING WITH THE INTERNAL BOTTOM SURFACE OF SAID STRUCTURE SPACED FORWARDLY OF SAID TUBULAR CONTROL VALVE HOUSING, A CONTROL MEMBER POSITIONED IN SAID CONTROL CHAMBER, SAID STRUCTURE HAVING A GENERALLY RADIALLY EXTENDING FLANGE SPACED RADIALLY OUTWARDLY OF SAID TUBULAR VALVE HOUSING, A DIAPHRAGM HAVING A RADIALLY INNER SECTION FASTENED TO SAID TUBULAR VALVE HOUSING, AN INTERMEDIATE SECTION FASTENED TO SAID FLANGE OF SAID STRUCTURE, AND AN OUTER SECTION FASTENED TO SAID SERVOMOTOR HOUSING IN SUCH MANNER AS TO ALLOW FORWARD AND REARWARD RELATIVE MOVEMENT BETWEEN SAID TUBULAR
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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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |