Valves and valve actuation – With means to increase head and seat contact pressure – Seat pressed to valve
Patent
1977-06-08
1978-09-12
Weakley, Harold W.
Valves and valve actuation
With means to increase head and seat contact pressure
Seat pressed to valve
251308, 251315, 251316, F16K 2500
Patent
active
041132297
ABSTRACT:
A spherical valve assembly wherein a valve sphere is operatively fitted in position within a fluid passageway through said valve assembly provides an integrally formed stem member having a valve stem and a sustaining stem for said valve sphere, with the integrally formed stem member extending through the valve sphere in supporting engagement therewith. A valve casing is configured to provide a valve stem orifice and a sustaining stem recess wherein the valve stem and the sustaining stem are, respectively, mounted. Valve seat members are located to be urged against the valve sphere which is rotated to open and close the valve. By means of the specific structural orientation of the assembly, particularly the integrally formed stem member including the valve stem and the sustaining stem, an improved valve assembly which may be manufactured more easily is provided.
REFERENCES:
patent: 1230882 (1917-06-01), Filbey
patent: 3091428 (1963-05-01), Magos
patent: 3173647 (1965-03-01), Bryant
patent: 3387815 (1968-06-01), Richards
patent: 3593960 (1971-07-01), Scaramucci
patent: 3860032 (1975-01-01), Rogers
patent: 3894718 (1975-07-01), Koch
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