US3308684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear type transmission
Assignee: English Electric Co Ltd
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Filing: 1964-05-22
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Granted: 1967-03-14
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Expires: 1984-05-22
Abstract
No abstract record available.
Inventors
- 👤 Wilkinson Harry
- 👤 Hutchinson Desmond Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:07
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/116; F; F16; F16H; F16H37/00; F16H2700/00; F16H2700/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
IN OR FOR AN ACTUATOR HAVING AN ELECTRIC DRIVING MOTOR, A GEAR TYPE TRANSMISSION COMPRISING, IN COMBINATION, A DRIVE MEMBER ARRANGED TO BE ECCENTRICALLY ROTATED; MEANS COUPLING THE DRIVE MEMBER TO THE ELECTRIC MOTOR TO BE DRIVEN THEREBY; A DOUBLE GEAR MEMBER DISPOSED ABOUT THE DRIVE MEMBER AND ARRANGED TO BE ECCENTRICALLY ROTATED THEREBY; A ROTATABLE OUTPUT GEAR MEMBER; AN ANNULAR MEMBER SURROUNDING THE GEAR MEMBER; A SPRING CENTERED WORM MESHING WITH THE ANNULAR MEMBER TO HOLD THE ANNULAR MEMBER NORMALLY STATIONARY, THE GEAR MEMBER HAVING TEETH WHICH MESH WITH TEETH ON THE OUTPUT GEAR AND HAVING TEETH WHICH MESH WITH TEETH ON THE NORMALLY STATIONARY MEMBER; MEANS FOR CAUSING ROTATION OF THE WORM FOR IMPARTING A ROTARY MOVEMENT TO THE ANNULAR MEMBER, WHEREBY THE OUTPUT GEAR MEMBER MAY BE CAUSED TO ROTATE BY ROTATING THE DRIVE MEMBER BY MEANS OF THE ELECTRIC MOTOR, OR BY ROTATION OF THE NORMALLY STATIONARY MEMBER; AND POSITION-RESPONSIVE MEANS CONTROLLED BY THE OUTPUT GEAR MEMBER AND CO-OPERABLE WITH ELECTRICAL SWITCHES OPERATED BY THE SAID POSITION-RESPONSIVE MEANS AT SET POSITIONS OF THE OUTPUT MEMBER.
Claim 2
Dependent Claim
179 words
IN OR FOR AN ACTUATOR HAVING AN ELECTRIC DRIVING MOTOR, A GEAR TYPE TRANSMISSION COMPRISING, IN COMBINATION, A DRIVE MEMBER ARRANGED TO BE ECCENTRICALLY ROTATED; MEANS COUPLING THE DRIVE MEMBER TO THE ELECTRIC MOTOR TO BE DRIVEN THEREBY; A DOUBLE GEAR MEMBER DISPOSED ABOUT THE DRIVE MEMBER AND ARRANGED TO BE ECCENTRICALLY ROTATED THEREBY; A ROTATABLE OUTPUT GEAR MEMBER; AN ANNULAR MEMBER SURROUNDING THE GEAR MEMBER; A SPRING CENTERED WORM MESHING WITH THE ANNULAR MEMBER TO HOLD THE ANNULAR MEMBER NORMALLY STATIONARY, THE GEAR MEMBER HAVING TEETH WHICH MESH WITH TEETH ON THE OUTPUT GEAR AND HAVING TEETH WHICH MESH WITH TEETH ON THE NORMALLY STATIONARY MEMBER; MEANS FOR CAUSING ROTATION OF THE WORM FOR IMPARTING A ROTARY MOVEMENT TO THE ANNULAR MEMBER, WHEREBY THE OUTPUT GEAR MEMBER MAY BE CAUSED TO ROTATE BY ROTATING THE DRIVE MEMBER BY MEANS OF THE ELECTRIC MOTOR, OR BY ROTATION OF THE NORMALLY STATIONARY MEMBER; AND POSITION-RESPONSIVE MEANS CONTROLLED BY THE OUTPUT GEAR MEMBER AND CO-OPERABLE WITH ELECTRICAL SWITCHES OPERATED BY THE SAID POSITION-RESPONSIVE MEANS AT SET POSITIONS OF THE OUTPUT MEMBER.
References Cited (Backward Citations)
US2300343A
Cited
US2828649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |