US3242756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve actuators
Assignee: Rotork PLC
•
Filing: 1965-05-10
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Granted: 1966-03-29
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Expires: 1985-05-10
Abstract
No abstract record available.
Inventors
- 👤 Fry Jeremy Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:19
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/08; H02K7/081; F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; F16K31/047; F16K31/048; F16K31/05; H02K7/10; H02K7/12; F16H; F16H1/00; F16H1/02; F16H1/04; F16H1/12; F16H1/16; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19828; Y10T74/19847
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A VALVE ACTUATOR COMPRISING A MAIN CASING HAVING A PARTITION WALL ADJACENT A REGION WHERE IT SUPPORTS A MOTOR CASING, A REVERSIBLE ELECTRIC MOTOR MOUNTED IN SAID MOTOR CASING, SAID ELECTRIC MOTOR INCLUDING A DRIVING SHAFT ASSEMBLY COMPRISING A SHAFT EXTENDING THROUGH SAID PARTITION WALL AND SUPPORTED AT ONE END IN AN END BEARING IN THE END WALL OF THE MOTOR CASING AND AT A POSITION INTERMEDIATE ITS ENDS IN A BEARING IN SAID PARTITION WALL, THE OTHER END OF SAID SHAFT EXTENDING INTO SAID MAIN CASING AND BEING UNSUPPORTED THEREIN, AND A WORM DIRECTLY MOUNTED ON THE UNSUPPORTED END OF THE DRIVING SHAFT IN THE MAIN CASING SAID SHAFT BEING AXIALLY MOVABLE IN EITHER DIRECTION, A DOUBLE ACTING RESILIENT DEVICE OPERABLE BETWEEN SAID ONE END OF THE SHAFT AND THE END WALL OF THE MOTOR CASING.
Claim 2
Dependent Claim
137 words
A VALVE ACTUATOR COMPRISING A MAIN CASING HAVING A PARTITION WALL ADJACENT A REGION WHERE IT SUPPORTS A MOTOR CASING, A REVERSIBLE ELECTRIC MOTOR MOUNTED IN SAID MOTOR CASING, SAID ELECTRIC MOTOR INCLUDING A DRIVING SHAFT ASSEMBLY COMPRISING A SHAFT EXTENDING THROUGH SAID PARTITION WALL AND SUPPORTED AT ONE END IN AN END BEARING IN THE END WALL OF THE MOTOR CASING AND AT A POSITION INTERMEDIATE ITS ENDS IN A BEARING IN SAID PARTITION WALL, THE OTHER END OF SAID SHAFT EXTENDING INTO SAID MAIN CASING AND BEING UNSUPPORTED THEREIN, AND A WORM DIRECTLY MOUNTED ON THE UNSUPPORTED END OF THE DRIVING SHAFT IN THE MAIN CASING SAID SHAFT BEING AXIALLY MOVABLE IN EITHER DIRECTION, A DOUBLE ACTING RESILIENT DEVICE OPERABLE BETWEEN SAID ONE END OF THE SHAFT AND THE END WALL OF THE MOTOR CASING.
References Cited (Backward Citations)
US2052674A
Cited
US2351060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |