Ball valve assembly and method for forming

Details Ball valve assembly and method for forming Ball valve assembly and method for forming

1997-12-10

1999-01-12

Fox, John

Valves and valve actuation

Rotary valves

Ball valve

251174, F16K 506

Patent

active

058576630

ABSTRACT:
A rotary ball valve assembly and method for forming utilizes a compression spring subjected to a non-torsional, axially directed compressive force to urge an annular seal into sealing engagement with a rotatable ball and, while so subjected, inwardly deforming a tubular member attached to the housing by an electromagnetic force to form an annular abutment retaining said compression spring.

REFERENCES:
patent: 2973182 (1961-02-01), Gill
patent: 2976907 (1961-03-01), Harvey et al.
patent: 3387815 (1968-06-01), Richards
patent: 3919756 (1975-11-01), Kajrup
patent: 4266566 (1981-05-01), Kacal et al.
patent: 4611374 (1986-09-01), Schnelle et al.
patent: 4779840 (1988-10-01), Andrea
patent: 5139047 (1992-08-01), Reiniche
patent: 5488972 (1996-02-01), McCracken et al.

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