Fluid valve and method of making same
AssigneeXomox Corporation
InventorEverett J. DeJager
Life of this patent
Estimating the term…
Abstract
An improved fluid valve and method of making same are provided wherein the valve has a rotatable closure member which is operated by a rotatable actuating device and which extends transverse the fluid flow axis of the valve, and, the actuating device has unique seal means which enables the valve to be operated while conveying high pressure fluid therethrough and at valve temperatures ranging between -40.degree. F. and 400.degree. F. The actuating device of such valve may also comprise universal means enabling rotation of such actuating device and closure member free of any binding tendencies.
Claims21
In a fluid valve comprising a valve body having a main portion and a transverse portion adjoining said main portion, a flow passage in said main portion for receiving fluid flow through said valve body, a closure member rotatably supported in said main portion for controlling fluid flow through said passage, surface means defining opening means through said transverse portion, said opening means having a central axis, an actuating device for rotating said closure member, said actuating device extending through said opening means and being rotatably supported by said transverse portion, and seal means disposed in said opening means and providing a fluid-tight seal between said transverse portion and said actuating device, the improvement in which, said surface means comprises a first cylindrical surface of a given cross-sectional area and a second cylindrical surface of a larger cross-sectional area, said surfaces being disposed with associated ends immediately adjacent each other to define a shoulder therebetween, an annular recess in said transverse portion extending inwardly of said shoulder and axially along said axis to define a projection and a sealing surface in said transverse portion wherein said sealing surface faces away from said central axis, and said seal means comprises an annular seal having a first part disposed within said recess and a second part disposed between said actuating device and said second cylindrical surface, said annular seal providing an improved seal between said transverse portion and said actuating device by contracting against said sealing surface and said actuating device upon subjecting said valve to a reduced temperature.
In a fluid valve comprising a valve body having a main portion and a transverse portion adjoining said main portion;
- a flow passage in said main portion for receiving fluid flow through said valve body;
- a closure member rotatably supported in said main portion for controlling fluid flow through said passage;
- surface means defining opening means through said transverse portion;
- said opening means having a central axis;
- an actuating device for rotating said closure member;
- said actuating device extending through said opening means and being rotatably supported by said transverse portion;
- said actuating device having an actuating stem;
- seal means disposed in said opening means and providing a fluid-tight seal between said transverse portion and said actuating device;
- said actuating device comprising universal means enabling rotation of said actuating device and closure member free of any binding tendencies;
- said universal means defining the lower portion of said actuating device and comprising;
- a coupling component disposed axially along said central axis between said actuating stem and said closure member;
- said coupling component having a lower part thereof operatively associated with said closure member and an upper part operatively associated with said actuating stem;
- said coupling component being a U-shaped component which has said lower part defining its lower part and a pair of parallel arms extending upwardly from said lower part and defining said upper part;
- said stem having a downwardly extending portion of roughly rectangular cross-sectional outline which is disposed between said parallel arms;
- and said arms and downwardly extending stem portion being dimensioned to allow movement of said stem portion between and relative to said arms along a first rectilinear path;
- the improvement in which said closure member has a cross-shaped cutout in the upper portion thereof;
- said cutout being adapted to receive said lower part of said U-shaped component therewithin;
- said cutout having a first cutout portion dimensioned to allow movement within said first cutout portion of said U-shaped component and said downwardly extending portion of said stem which is disposed between said arms along a second rectilinear path aligned substantially perpendicular to said first path;
- said cutout having a second cutout portion dimensioned to allow movement within said second cutout portion of said stem portion along said first path;
- and said stem, coupling component, and closure member thus being provided with limited freedom of movement relative to each other along said first and second paths free of said binding tendencies yet are coupled for rotary movement to define said universal means.
In a fluid valve comprising a valve body having a main portion and a transverse portion adjoining said main portion;
- a flow passage in said main portion for receiving fluid flow though said valve body;
- a closure member rotatably supported in said main portion for controlling fluid flow through said passage;
- surface means defining opening means through said transverse portion;
- said opening means having a central axis;
- an actuating device for rotating said closure member;
- said actuating device extending through said opening means and being rotatably supported by said transverse portion;
- said actuating device having an actuating stem;
- seal means disposed in said opening means and providing a fluid-tight seal between said transverse portion and said actuating device;
- said actuating device comprising universal means enabling rotation of said actuating device and closure member free of any binding tendencies;
- said universal means defining the lower portion of said actuating device and comprising;
- a coupling component disposed axially along said central axis between said actuating stem and said closure member;
- and said coupling component having a lower part thereof operatively associated with said closure member and an upper part operatively associated with said actuating stem;
- the improvement in which, said stem has a downwardly extending stem portion of roughly rectangular cross-sectional outline, said closure member has a roughly rectangular closure cutout in its upper portion, said coupling component has an upper portion provided with a roughly rectangular coupling cutout which has said stem portion disposed therein, and said coupling component has a downwardly extending coupling portion also of roughly rectangular cross-sectional outline which is disposed in said closure cutout.
Dependencies are inferred from the claim text.