US3085781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve actuator
Assignee: R AND A MACHINE CO Inc
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Filing: 1962-01-15
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Granted: 1963-04-16
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Expires: 1982-01-15
Abstract
No abstract record available.
Inventors
- 👤 Pointe Gabriel M La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:47
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; F16K31/041; F16K31/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
238 words
A VALVE ACTUATOR, COMPRISING AN OUTPUT SHAFT ADAPTED TO BE CONNECTED TO THE VALVE STEM, AN ELECTRIC MOTOR, A SPEED REDUCTION MEANS CONNECTING THE MOTOR THE SHAFT FOR MOVING THE VALVE FROM AN INOPERATIVE CONDITION TO AN OPERATIVE CONDITION, A STORAGE SPRING CONNECTED TO THE MOTOR TO STORE ENERGY WHILE THE MOTOR IS MOVING THE VALVE TO OPERATIVE CONDITION, THE SPRING BIASING THE SPEED REDUCTION MEANS SO AS TO MOVE THE VALVE FROM OPERATIVE CONDITION TO INOPERATIVE CONDITION, A SWITCH CONTROLLING THE FLOW OF ELECTRICITY TO THE MOTOR, A CONTACTOR ASSOCIATED WITH THE SPEED REDUCTION MEANS LOCATED SO AS TO STRIKE AND TO OPEN THE SWITCH WHEN THE VALVE REACHES OPERATIVE CONDITION, AN ELECTRICALLY-OPERATED LOCK WHICH WHEN ENERGIZED PREVENTS THE SPRING FROM ACTING TO MOVE THE VALVE FROM OPERATIVE TO INOPERATIVE CONDITION, AND AN OVERRUNNING CLUTCH ASSOCIATED WITH THE SPEED REDUCTION MEANS TO DISCONNECT THE PORTION OF THE SPEED REDUCTION MEANS CONNECTING THE SPRING TO THE SHAFT FROM THE MOTOR WHEN THE VALVE HAS REACHED THE INOPERATIVE CONDITION, THE CLUTCH CONSISTING OF AN INTERMEDIATE SHAFT CONNECTED TO THE OUTPUT SHAFT, A MEMBER ROTATABLE ON THE INTERMEDIATE SHAFT, A SLEEVE SLIDABLE BUT NOT ROTATABLE RELATIVE TO THE INTERMEDIATE SHAFT, A SPRING PRESSING THE SLEEVE INTO ENGAGEMENT WITH THE MEMBER, THE MEMBER AND SLEEVE BEING FORMED WITH ENGAGING TEETH EACH WITH AN INCLINED SURFACE ON ONE SIDE AND A SURFACE EXTENDING AXIALLY OF THE INTERMEDIATE SHAFT ON THE OTHER SIDE.
Claim 2
Dependent Claim
238 words
A VALVE ACTUATOR, COMPRISING AN OUTPUT SHAFT ADAPTED TO BE CONNECTED TO THE VALVE STEM, AN ELECTRIC MOTOR, A SPEED REDUCTION MEANS CONNECTING THE MOTOR THE SHAFT FOR MOVING THE VALVE FROM AN INOPERATIVE CONDITION TO AN OPERATIVE CONDITION, A STORAGE SPRING CONNECTED TO THE MOTOR TO STORE ENERGY WHILE THE MOTOR IS MOVING THE VALVE TO OPERATIVE CONDITION, THE SPRING BIASING THE SPEED REDUCTION MEANS SO AS TO MOVE THE VALVE FROM OPERATIVE CONDITION TO INOPERATIVE CONDITION, A SWITCH CONTROLLING THE FLOW OF ELECTRICITY TO THE MOTOR, A CONTACTOR ASSOCIATED WITH THE SPEED REDUCTION MEANS LOCATED SO AS TO STRIKE AND TO OPEN THE SWITCH WHEN THE VALVE REACHES OPERATIVE CONDITION, AN ELECTRICALLY-OPERATED LOCK WHICH WHEN ENERGIZED PREVENTS THE SPRING FROM ACTING TO MOVE THE VALVE FROM OPERATIVE TO INOPERATIVE CONDITION, AND AN OVERRUNNING CLUTCH ASSOCIATED WITH THE SPEED REDUCTION MEANS TO DISCONNECT THE PORTION OF THE SPEED REDUCTION MEANS CONNECTING THE SPRING TO THE SHAFT FROM THE MOTOR WHEN THE VALVE HAS REACHED THE INOPERATIVE CONDITION, THE CLUTCH CONSISTING OF AN INTERMEDIATE SHAFT CONNECTED TO THE OUTPUT SHAFT, A MEMBER ROTATABLE ON THE INTERMEDIATE SHAFT, A SLEEVE SLIDABLE BUT NOT ROTATABLE RELATIVE TO THE INTERMEDIATE SHAFT, A SPRING PRESSING THE SLEEVE INTO ENGAGEMENT WITH THE MEMBER, THE MEMBER AND SLEEVE BEING FORMED WITH ENGAGING TEETH EACH WITH AN INCLINED SURFACE ON ONE SIDE AND A SURFACE EXTENDING AXIALLY OF THE INTERMEDIATE SHAFT ON THE OTHER SIDE.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |