Patent US3214646A successfully refreshed from Google Patents.
US3214646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque motor
Assignee: Midwestern Instruments Inc
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Filing: 1962-11-13
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Granted: 1965-10-26
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Expires: 1982-11-13
Abstract
No abstract record available.
Inventors
- 👤 Billy E Duff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:05
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
AN ELECTRO-MECHANICAL ACTUATOR COMPRISING: A PAIR OF ELECTROMAGNETIC DEVICES EACH PROVIDED WITH A POLE PIECE AND ADAPTED TO RECEIVE AN ELECTRICAL SIGNAL; A MOVABLE ARMATURE BETWEEN THE POLE PIECES AND NORMALLY SPACED THEREFROM, SAID ARMATURE BEING OF MAGNETIC MATERIAL RENDERING THE SAME RESPONSIVE TO ENERGIZATION OF SAID DEVICES; AN ELONGATED TUBE OF RESILIENT MATERIAL HAVING ONE END THEREOF RIGID TO THE ARMATURE; MEANS RIGIDLY SUPPORTING THE OPPOSITE END OF THE TUBE; AN ACTUATOR SHAFT I N SAID TUBE; AND MEANS RIGIDLY INTERCONNECTING THE SHAFT AND THE TUBE ADJACENT SAID ONE END OF THE LATTER.
Claim 2
Dependent Claim
94 words
AN ELECTRO-MECHANICAL ACTUATOR COMPRISING: A PAIR OF ELECTROMAGNETIC DEVICES EACH PROVIDED WITH A POLE PIECE AND ADAPTED TO RECEIVE AN ELECTRICAL SIGNAL; A MOVABLE ARMATURE BETWEEN THE POLE PIECES AND NORMALLY SPACED THEREFROM, SAID ARMATURE BEING OF MAGNETIC MATERIAL RENDERING THE SAME RESPONSIVE TO ENERGIZATION OF SAID DEVICES; AN ELONGATED TUBE OF RESILIENT MATERIAL HAVING ONE END THEREOF RIGID TO THE ARMATURE; MEANS RIGIDLY SUPPORTING THE OPPOSITE END OF THE TUBE; AN ACTUATOR SHAFT I N SAID TUBE; AND MEANS RIGIDLY INTERCONNECTING THE SHAFT AND THE TUBE ADJACENT SAID ONE END OF THE LATTER.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |