Back to results
US 10,094,366 B2Granted
Valve having opposed curved sealing surfaces on a valve member and a valve seat to facilitate effective sealing
AssigneeNational Oilwell Varco, L.P.
InventorAdrian Marica
Life of this patent
Estimating the term…
Abstract
An illustrative valve is disclosed that includes a valve body, a valve seat disposed within the valve body that has a first curved sealing surface and a valve member having a second curved sealing surface that is adapted to sealingly engage the first curved sealing surface, wherein the first and second curved sealing surfaces are opposed curved sealing surfaces.
Claims25
A valve, comprising:
- a valve body;
- a valve seat disposed within said valve body, wherein said valve seat has a first curved sealing surface;
- a valve member having a second curved sealing surface that is adapted to sealingly engage said first curved sealing surface of said valve seat and wherein said first and second curved sealing surfaces are opposed curved sealing surfaces;
- an actuator operatively coupled to said valve member via a constantly tensioned, non-rigid connector, said actuator adapted for selectively moving said valve member relative to said valve seat;
- a ball that is at least partially positioned in a recess in said valve member, said ball being operatively coupled to said constantly tensioned, non-rigid connector;
- and
- means for permitting said valve member to move relative to said ball.
4 more elements
A valve, comprising:
- a valve body;
- a valve seat disposed within said valve body, wherein, relative to a centerline of said valve, said valve seat has a first curved sealing surface that is an outwardly curved convex sealing surface relative to said valve centerline;
- a valve member having a second curved sealing surface that is adapted to sealingly engage said first curved sealing surface of said valve seat and wherein said second curved sealing surface is an inwardly curved concave sealing surface relative to said valve centerline;
- an actuator operatively coupled to said valve member via a constantly tensioned, non-rigid connector, said actuator adapted for selectively moving said valve member relative to said valve seat;
- and
- a ball that is at least partially positioned in a recess in said valve member, said ball being operatively coupled to said constantly tensioned, non-rigid connector, wherein said valve member is adapted to pivot relative to said ball.
3 more elements
A valve, comprising:
- a valve body;
- a valve seat disposed within said valve body, wherein, relative to a centerline of said valve, said valve seat has a first curved sealing surface that is an outwardly curved convex sealing surface relative to said valve centerline;
- a valve member having a second curved sealing surface that is adapted to sealingly engage said first curved sealing surface of said valve seat and wherein said second curved sealing surface is an inwardly curved concave sealing surface relative to said valve centerline;
- a spring adapted to urge said valve member against said valve seat;
- an actuator operatively coupled to said valve member via a constantly tensioned, non-rigid cable connector, said actuator adapted for selectively moving said valve member relative to said valve seat;
- and
- a ball that is at least partially positioned in a recess in said valve member, said ball being operatively coupled to said constantly tensioned, non-rigid cable connector, wherein said valve member is adapted to pivot relative to said ball.
4 more elements
A valve, comprising:
- a valve body;
- a valve seat disposed within said valve body, wherein said valve seat has a first curved sealing surface;
- a valve member having a second curved sealing surface that is adapted to sealingly engage said first curved sealing surface of said valve seat and wherein said first and second curved sealing surfaces are opposed curved sealing surfaces;
- an actuator operatively coupled to said valve member via a constantly tensioned, non-rigid connector, said actuator adapted for selectively moving said valve member relative to said valve seat;
- and
- a ball that is at least partially positioned in a recess in said valve member, said ball being operatively coupled to said constantly tensioned, non-rigid connector, wherein said valve member is adapted to pivot relative to said ball.
3 more elements
A valve, comprising:
- a valve body;
- a valve seat disposed within said valve body, wherein, relative to a centerline of said valve, said valve seat has a first curved sealing surface that is an outwardly curved convex sealing surface relative to said valve centerline;
- a valve member having a second curved sealing surface that is adapted to sealingly engage said first curved sealing surface of said valve seat and wherein said second curved sealing surface is an inwardly curved concave sealing surface relative to said valve centerline;
- an actuator operatively coupled to said valve member via a constantly tensioned, non-rigid connector, said actuator adapted for selectively moving said valve member relative to said valve seat;
- a ball that is at least partially positioned in a recess in said valve member, said ball being operatively coupled to said constantly tensioned, non-rigid connector;
- and
- means for permitting said valve member to move relative to said ball.
4 more elements
Dependencies are inferred from the claim text.