Fluid flow valve
AssigneeCarten Controls Inc.
InventorsPeter J. Greenwood, Benedict J. Aliano, Taeeon Lee, Martin M. Barolli
Life of this patent
Estimating the term…
Abstract
In a preferred embodiment, in a fluid flow valve having a body and having a movable member with lower face, the movable member being movable between a position spaced from a sealing position in the body when the valve is in an open position and movable to the sealing position when the valve is in a closed position, the improvement including: an annular sealing member disposed in the outer periphery of the lower face of the movable member to sealingly engage a portion of the body when the valve is in the closed position.
Claims15
In a fluid flow valve having a body and having a movable member with a lower face, said movable member being movable between a position spaced from a sealing position in said body when said valve is in an open position and movable to said sealing position when said valve is in a closed position, the improvement comprising:
- (a) an annular sealing member disposed in the outer periphery of said lower face of said movable member to sealingly engage a portion of said body when said valve is in said closed position;
- (b) wherein said sealing member is disposed in a flange section of said movable member formed around said movable member;
- (c) wherein said lower face of said movable member includes a flat central section and an intermediate section intersecting and joining said flat section with said flange section;
- and
- (d) wherein the intersection of said central and intermediate sections is smooth and rounded.
In a fluid flow valve having a body and having a movable member with a lower face, said movable member being movable between a position spaced from a sealing position in said body when said valve is in an open position and movable to said sealing position when said valve is in a closed position, the improvement comprising:
- (a) an annular sealing member disposed in the outer periphery of said lower face of said movable member to sealingly engage a portion of said body when said valve is in said closed position;
- (b) a stem having a smooth portion at the distal end thereof and a threaded portion at the proximal end thereof;
- (c) said sealing means is operatively attached to said proximal end of said stem and rotation of said stem causes said valve to move between said open position and said sealing position;
- (d) an upper guide bearing disposed against said smooth portion of said stem to support said stem against radial movement thereof;
- and
- (e) a lower guide bearing disposed against said threaded portion of said stem to support said stem against radial movement thereof.
Dependencies are inferred from the claim text.