Fluid handling – Removable valve head and seat unit – Threaded into valve casing
Patent
1995-02-02
1996-08-20
Hepperle, Stephen M.
Fluid handling
Removable valve head and seat unit
Threaded into valve casing
1374546, 137491, F16K 2700
Patent
active
055469809
ABSTRACT:
A cartridge valve for installation in a manifold having a receiving cavity which includes an inlet port and an outlet port. The cartridge valve includes a cavity adaptor for engaging the cartridge valve with the receiving cavity in the manifold, a cage assembly which includes a floating cage body within a portion of the cavity adaptor, and a control device which controls the flow through the cartridge valve. The cavity adaptor has walls defining a primary bore and the cage body has walls defining a second bore. The cavity adaptor and the cage body are sized and dimensioned so that an interior dimension of the cavity adaptor is greater than an exterior dimension of the corresponding portion of the cage body. The dimensional difference between the interior surface of the cavity adaptor and the exterior surface of the cage body defines a radial passage. A knob assembly associated with the cartridge valve includes a split collet which is positively retained on a handle portion. A recess in the cartridge valve receives the split collet. A tapered bushing is mated with the split collet to spread portions of the collet to securely engage the collet in the recess in the cartridge valve.
REFERENCES:
patent: 2882922 (1959-04-01), Shindel
patent: 3777777 (1973-12-01), Katchka
patent: 4217927 (1980-08-01), Morita
patent: 4223693 (1980-09-01), Kosarzecki
patent: 4653527 (1987-03-01), Kosarzecki
patent: 4679584 (1987-07-01), Wolff
patent: 4921547 (1990-05-01), Kosarzecki
patent: 4936339 (1990-06-01), Bennett
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