US3129603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temporary handwheel operator
Assignee: ACF Industries Inc
•
Filing: 1961-05-01
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Granted: 1964-04-21
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Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 Paul J Natho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:18
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/14; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18752
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
130 words
A TEMPORARY HANDWHEEL OPERATOR FOR A RISING STEM GATE VALVE TO PERMIT EXPEDITIOUS INSTALLATIONS OF A HIGHLOW CONTROL VALVE ON THE GATE VALVE, SAID VALVE HAVING A RECIPROCATING VALVE MEMBER, A RECIPROCATING STEM PASSING THROUGH A PASSAGE IN A BONNET ATTACHED TO THE VALVE BODY, SAID OPERATOR COMPRISING: (1) ADAPTER MEANS ATTACHED TO A BONNET OF THE VALVE AND HAVING PROVISIONS FOR HAVING AN EXTERNAL OPERATOR ATTACHED THERETO; (2) A NON-ROTATING AUXILIARY STEM CONNECTED TO A STEM EXTENDING FROM THE VALVE AND HAVING ITS AXIALLY OUTER END PROVIDED WITH EXTERNAL THREADS; (3) A COLLAR ATTACHED TO THE ADAPTER SURROUNDING THE PROTRUDING PORTION OF THE VALVE STEM AND THE AXIALLY INNER END OF THE AUXILIARY STEM, (A) MEANS CO-OPERATING WITH THE AUXILIARY STEM AND COLLAR TO RETAIN THE AUXILIARY STEM NONROTATIVE;
References Cited (Backward Citations)
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Cited
US2582996A
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US2566774A
Cited
US2859639A
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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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |