US3245427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operator apparatus
Assignee: EDWARD VALVES Inc
•
Filing: 1962-08-02
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Granted: 1966-04-12
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Expires: 1982-08-02
Abstract
No abstract record available.
Inventors
- 👤 Antoni J Porwit
- 👤 George J Paptzun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:54
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6552
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN COMBINATION WITH A VALVE HAVING A MOVABLE VALVE CLOSURE MEMBER AND A VALVE STEM CONNECTED TO SAID VALVE CLOSURE MEMBER, OPERATOR APPARATUS COMPRISING: (A) A REVERSIBLY OPERABLE MOTOR MEANS COMPRISED OF A STATOR AND ROTOR, (B) MEANS COUPLING SAID STEM WITH SAID MOTOR MEANS FOR TRANSMITTING IMPACT ENERGY DELIVERED BY SAID MOTOR MEANS TO SAID STEM, (C) CONTROL MEANS FOR AUTOMATICALLY REPEATEDLY REVERSING THE DIRECTION OF OPERATION OF SAID MOTOR MEANS TO IMPART SUCCESSIVE AND REPEATED DRIVE IMPACTS TO SAID STEM IN A SELECTED DIRECTION, AND (D) A SEALED HOUSING HAVING FLOW LINE INLET AND OUTLET OPENINGS COMPLETELY ENCLOSING SAID MOTOR MEANS, VALVE STEM, COUPLING MEANS AND CLOSURE MEMBER.
Claim 2
Dependent Claim
110 words
IN COMBINATION WITH A VALVE HAVING A MOVABLE VALVE CLOSURE MEMBER AND A VALVE STEM CONNECTED TO SAID VALVE CLOSURE MEMBER, OPERATOR APPARATUS COMPRISING: (A) A REVERSIBLY OPERABLE MOTOR MEANS COMPRISED OF A STATOR AND ROTOR, (B) MEANS COUPLING SAID STEM WITH SAID MOTOR MEANS FOR TRANSMITTING IMPACT ENERGY DELIVERED BY SAID MOTOR MEANS TO SAID STEM, (C) CONTROL MEANS FOR AUTOMATICALLY REPEATEDLY REVERSING THE DIRECTION OF OPERATION OF SAID MOTOR MEANS TO IMPART SUCCESSIVE AND REPEATED DRIVE IMPACTS TO SAID STEM IN A SELECTED DIRECTION, AND (D) A SEALED HOUSING HAVING FLOW LINE INLET AND OUTLET OPENINGS COMPLETELY ENCLOSING SAID MOTOR MEANS, VALVE STEM, COUPLING MEANS AND CLOSURE MEMBER.
References Cited (Backward Citations)
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Cited
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US2941476A
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US2939399A
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US2992807A
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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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |