Fluid handling – Removable valve head and seat unit – Threaded into valve casing
Patent
1988-01-20
1989-04-25
Chambers, A. Michael
Fluid handling
Removable valve head and seat unit
Threaded into valve casing
251304, F16K 2700
Patent
active
048238325
ABSTRACT:
A faucet valve is operated by a rotatable stem which is inserted in a tube-shaped housing. The valve, preferably composed of brass, is screwed into a standard size plumbing fixture. The body of the stem is disposed between a washer preferably made of teflon and an "O" ring, which exerts a pressure between said body of the stem and the tube. The pressure does not generally vary according to the fluid pressure therein or fluid flow therethrough enabling the valve to be used in high pressure applications. A stationary valving member within the housing mates with a cooperating rotatable valving member which is driven by the stem. The operating end of the stem is thick relative to the housing into which it fits; this thickness allows the operating part of the stem to be able to handle relatively large operating force without bending or breaking. A pin and cooperating slot provide a 90.degree. limit on stem rotation.
REFERENCES:
patent: 3168280 (1965-02-01), Mueller
patent: 3517696 (1970-06-01), Faure
patent: 3538576 (1970-11-01), Saving
patent: 3831621 (1974-08-01), Anthony et al.
patent: 3967811 (1976-07-01), Keller, III
patent: 4077926 (1978-03-01), Karie
patent: 4331176 (1982-05-01), Parkinson
patent: 4493338 (1985-01-01), Petursson
Arant Gene W.
Chambers A. Michael
Fox John C.
Harden Industries, Inc.
Jodziewicz Matthew F.
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