US3306571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate-valve
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
•
Filing: 1964-04-27
•
Granted: 1967-02-28
•
Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Bussi Jean
- 👤 Lechevallier Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:35
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/24; F16K31/00; F16K31/12; F16K31/16; F16K31/163; F16K31/1635; G; G21; G21D; G21D1/00; G21D1/02; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T137/00; Y10T137/5109
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
GATE-VALVE HAVING AN OBTURATING MEMBER WHICH IS ADAPTED TO MOVE WITHIN A CONDUIT FROM A LONGITUDINAL POSITION TO A TRANSVERSE POSITION SO AS TO EFFECT AT WILL THE OBTURATION OF SAID CONDUIT IRRESPECTIVE OF THE DIRECTION OF THE FORCES EXERTED ON SAID OBTURATING MEMBER BY THE FLUID WHICH IS PRESENT WITHIN SAID CONDUIT, SAID GATE-VALVE COMPRISING A VALVE BODY HAVING TWO COAXIAL ANNULAR SEATS LOCATED SYMMETRICALLY AT A PREDETERMINED AXIAL DISTANCE AWAY FROM EACH OTHER, A SINGLE OBTURATOR FLAP WHICH CAN BE APPLIED AXIALLY AND IN LEAK-TIGHT MANNER AGAINST EITHER ONE OR THE OTHER OF SAID TWO VALVE SEATS AND MEANS FOR GUIDING AND OPERATING THE FLAP SO AS TO PERMIT SAID FLAP TO MOVE BETWEEN A POSITION IN WHICH IT IS LOCATED PARALLEL TO THE AXES OF BOTH VALVE SEATS AND ONE OF THE POSITIONS IN WHICH SAID FLAP IS APPLIED AGAINST ONE VALVE SEAT, SAID MEANS BEING ADAPTED TO IMPART TO SAID FLAP A MOVEMENT OF TRANSLATION WHICH IS SUBSTANTIALLY AT RIGHT ANGLES TO THE VALVE SEATS AT LEAST AT THE TIME OF APPLICATION OF SAID FLAP AGAINST A VALVE SEAT OR AT THE TIME OF RELEASE OF SAID FLAP FROM SAID VALVE SEAT.
Claim 2
Dependent Claim
196 words
GATE-VALVE HAVING AN OBTURATING MEMBER WHICH IS ADAPTED TO MOVE WITHIN A CONDUIT FROM A LONGITUDINAL POSITION TO A TRANSVERSE POSITION SO AS TO EFFECT AT WILL THE OBTURATION OF SAID CONDUIT IRRESPECTIVE OF THE DIRECTION OF THE FORCES EXERTED ON SAID OBTURATING MEMBER BY THE FLUID WHICH IS PRESENT WITHIN SAID CONDUIT, SAID GATE-VALVE COMPRISING A VALVE BODY HAVING TWO COAXIAL ANNULAR SEATS LOCATED SYMMETRICALLY AT A PREDETERMINED AXIAL DISTANCE AWAY FROM EACH OTHER, A SINGLE OBTURATOR FLAP WHICH CAN BE APPLIED AXIALLY AND IN LEAK-TIGHT MANNER AGAINST EITHER ONE OR THE OTHER OF SAID TWO VALVE SEATS AND MEANS FOR GUIDING AND OPERATING THE FLAP SO AS TO PERMIT SAID FLAP TO MOVE BETWEEN A POSITION IN WHICH IT IS LOCATED PARALLEL TO THE AXES OF BOTH VALVE SEATS AND ONE OF THE POSITIONS IN WHICH SAID FLAP IS APPLIED AGAINST ONE VALVE SEAT, SAID MEANS BEING ADAPTED TO IMPART TO SAID FLAP A MOVEMENT OF TRANSLATION WHICH IS SUBSTANTIALLY AT RIGHT ANGLES TO THE VALVE SEATS AT LEAST AT THE TIME OF APPLICATION OF SAID FLAP AGAINST A VALVE SEAT OR AT THE TIME OF RELEASE OF SAID FLAP FROM SAID VALVE SEAT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |