Valves and valve actuation – With means to increase head and seat contact pressure – Seat pressed to valve
Patent
1975-01-31
1977-05-31
Weakley, Harold W.
Valves and valve actuation
With means to increase head and seat contact pressure
Seat pressed to valve
137312, 277212C, 277172, 251175, F16K 2500
Patent
active
040265153
ABSTRACT:
A fluid flow control apparatus making use of sealing means formed in two parts, one being carried by the body and the other by an operating rod or strut which reciprocates between operating positions. One of the parts is a sealing assembly which carries resilient sealing means, and the other part provides a cylindrical surface with which the sealing assembly cooperates. The sealing assembly is characterized by the use of one and preferably two cup-shaped sealing members of resilient material which are assembled and restrained by means which prevents fluid differential pressures or fluid flow from disrupting or distorting the sealing members from normal operating configurations. In one embodiment, the sealing assembly is in the form of a plunger which is movable into and out of a cylindrical sleeve carried by the body. In another embodiment the sealing assembly is carried by the body, and the other part provides the cylindrical surface and forms a closure which can be moved into and out of the sealing assembly.
REFERENCES:
patent: 2101991 (1937-12-01), Finley
patent: 2126739 (1938-08-01), Corbin
patent: 2886283 (1959-05-01), Natho
patent: 3095008 (1963-06-01), Rudelick
patent: 3096071 (1963-07-01), Fisher
patent: 3307633 (1967-03-01), Newall
M & J Valve Company
Weakley Harold W.
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