Patent US3120944A successfully refreshed from Google Patents.
US3120944A
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Mechanical movement gate-valve having positive reduction means
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1961-06-22
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Granted: 1964-02-11
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Expires: 1981-06-22
Abstract
No abstract record available.
Inventors
- 👤 Cogez Paul
- 👤 Dubuisson Jacques
- 👤 Humbert Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:05
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/52; F16K31/528; F16K31/5286; F16K3/00; F16K3/02; F16K3/16; F16K3/18; F16K3/182; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/18312; Y10T74/18328
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A GATE VALVE, A VALVE PLATE, A VALVE SEAT AND MEANS FOR MOVING SAID VALVE PLATE PARALLEL TO ITS GENERAL MEDIAN PLANE AND THEN FOR MOVING SAID VALVE PLATE PERPENDICULAR TO SAID PLANE INTO ENGAGEMENT WITH SAID SEAT COMPRISING PARALLEL SLIDES ENGAGING OPPOSITE SIDES OF SAID PLATE, RECTILINEAR SLOTS IN SAID SLIDES, RODS SUPPORTING SAID PLATE AND ENGAGING IN SAID SLOTS, TRANSVERSE NOTCHES IN SAID SLOTS FOR SAID RODS, A THREADED CONTROL ROD PARRALLEL AND ADJACENT TO EACH OF SAID SLIDES, A CONTROL NUT MOUNTED ON EACH OF SAID THREADED RODS AND ENGAGING THE ADJACENT ONE OF SAID SLIDES, AN APERTURE IN EACH OF SAID NUTS FOR EACH OF SAID RODS AND MEANS FOR ROTATING SAID THREADED CONTROL RODS SIMULTANEOUSLY.
Claim 2
Dependent Claim
121 words
IN A GATE VALVE, A VALVE PLATE, A VALVE SEAT AND MEANS FOR MOVING SAID VALVE PLATE PARALLEL TO ITS GENERAL MEDIAN PLANE AND THEN FOR MOVING SAID VALVE PLATE PERPENDICULAR TO SAID PLANE INTO ENGAGEMENT WITH SAID SEAT COMPRISING PARALLEL SLIDES ENGAGING OPPOSITE SIDES OF SAID PLATE, RECTILINEAR SLOTS IN SAID SLIDES, RODS SUPPORTING SAID PLATE AND ENGAGING IN SAID SLOTS, TRANSVERSE NOTCHES IN SAID SLOTS FOR SAID RODS, A THREADED CONTROL ROD PARRALLEL AND ADJACENT TO EACH OF SAID SLIDES, A CONTROL NUT MOUNTED ON EACH OF SAID THREADED RODS AND ENGAGING THE ADJACENT ONE OF SAID SLIDES, AN APERTURE IN EACH OF SAID NUTS FOR EACH OF SAID RODS AND MEANS FOR ROTATING SAID THREADED CONTROL RODS SIMULTANEOUSLY.
References Cited (Backward Citations)
US547817A
Cited
US1057226A
Cited
US1213764A
Cited
US1779637A
Cited
US1985078A
Cited
US2198639A
Cited
US2203399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |