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US3131608A
Expired / Lapsed
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Servomechanism
Assignee: Individual
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Filing: 1961-10-25
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Granted: 1964-05-05
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Expires: 1981-10-25
Abstract
No abstract record available.
Inventors
- 👤 Yando Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:11
CPC Classifications
F; F15; F15B; F15B9/00; F15B9/02; F15B9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
212 words
A SERVOMECHANISM COMPRISING (A) A CASING HAVING A CHAMBER DIVIDED INTO FIRST AND SECOND PERMANENTLY INTERCONNECTED SECTIONS; (B) AN OUTPUT MEMBER POSITIONED IN SAID FIRST SECTION AND ADAPTED FOR MOVEMENT TO AND FRO ABOUT A NEUTRAL POSITION; (C) A CONTROL MEMBER POSITIONED IN SAID SECOND SECTION AND ADAPTED FOR MOVEMENT TO AND FRO ABOUT A NEUTRAL POSITION; (D) FIRST MEANS TO APPLY SMALL DISPLACING FORCES TO THE CONTROL MEMBER TO SHIFT SAME TO AND FROM ITS NEUTRAL POSITION; (E) SECOND MEANS POSITIONED IN BOTH SECTIONS AND MECHANICALLY CONNECTED DIRECTLY BETWEEN SAID MEMBERS TO EXERT A FORCE THEREBETWEEN WHICH ACTS IN OPPOSITION TO SAID DISPLACING FORCES; AND (F) AN EXTERNAL SOURCE OF ENERGY RESPONSIVE TO THE DISPLACEMENT OF THE CONTROL MEMBER BY THE DISPLACING FORCES TO APPLY POWER TO THE OUTPUT MEMBER, THE CONSTRUCTION AND ARRANGEMENT BEING SUCH THAT IN THE ABSENCE OF DISPLACING FORCES BOTH MEMBERS ARE HELD IN NEUTRAL POSITIONS WHILE IN THE PRESENCE OF DISPLACING FORCES, THE OUTPUT MEMBER WILL BE OPERATED POWERFULLY IN A DIRECTION OPPOSITE TO THAT OF THE DISPLACING FORCES UNTIL THE OUTPUT MEMBER ATTAINS A POSITION CHARACTERISTIC OF THE MAGNITUDE OF THE DISPLACING FORCES AND THE SECOND MEANS SUPPLIES A NET FEEDBACK FORCE TO THE CONTROL MEMBER TO RETURN THE CONTROL MEMBER TO ITS NEUTRAL POSITION.
Claim 2
Dependent Claim
212 words
A SERVOMECHANISM COMPRISING (A) A CASING HAVING A CHAMBER DIVIDED INTO FIRST AND SECOND PERMANENTLY INTERCONNECTED SECTIONS; (B) AN OUTPUT MEMBER POSITIONED IN SAID FIRST SECTION AND ADAPTED FOR MOVEMENT TO AND FRO ABOUT A NEUTRAL POSITION; (C) A CONTROL MEMBER POSITIONED IN SAID SECOND SECTION AND ADAPTED FOR MOVEMENT TO AND FRO ABOUT A NEUTRAL POSITION; (D) FIRST MEANS TO APPLY SMALL DISPLACING FORCES TO THE CONTROL MEMBER TO SHIFT SAME TO AND FROM ITS NEUTRAL POSITION; (E) SECOND MEANS POSITIONED IN BOTH SECTIONS AND MECHANICALLY CONNECTED DIRECTLY BETWEEN SAID MEMBERS TO EXERT A FORCE THEREBETWEEN WHICH ACTS IN OPPOSITION TO SAID DISPLACING FORCES; AND (F) AN EXTERNAL SOURCE OF ENERGY RESPONSIVE TO THE DISPLACEMENT OF THE CONTROL MEMBER BY THE DISPLACING FORCES TO APPLY POWER TO THE OUTPUT MEMBER, THE CONSTRUCTION AND ARRANGEMENT BEING SUCH THAT IN THE ABSENCE OF DISPLACING FORCES BOTH MEMBERS ARE HELD IN NEUTRAL POSITIONS WHILE IN THE PRESENCE OF DISPLACING FORCES, THE OUTPUT MEMBER WILL BE OPERATED POWERFULLY IN A DIRECTION OPPOSITE TO THAT OF THE DISPLACING FORCES UNTIL THE OUTPUT MEMBER ATTAINS A POSITION CHARACTERISTIC OF THE MAGNITUDE OF THE DISPLACING FORCES AND THE SECOND MEANS SUPPLIES A NET FEEDBACK FORCE TO THE CONTROL MEMBER TO RETURN THE CONTROL MEMBER TO ITS NEUTRAL POSITION.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |