Spring assisted ball valve

Details Spring assisted ball valve Spring assisted ball valve

1991-05-14

1992-04-14

Rosenthal, Arnold

Valves and valve actuation

With material guide or restrictor

Movable or resilient guide or restrictor

137901, 251337, F16K 3106

Patent

active

051040913

ABSTRACT:
A center flow ball valve assembly includes a pre-loaded spring positioned in line with the valve fluid inlet port for seating the ball in the valve orifice, the spring configured in stepped diameter coil sctions including a smaller diameter ball mounting section for cradling the ball and a larger diameter pedestal section which straddles the inlet port, the spring, with actuation of the ball valve permitting fluid to pass with minimum pressure drop through an unobstructed circumferential path between the different diameter coil sections.

REFERENCES:
patent: 2400817 (1946-05-01), Fox et al.
patent: 2629007 (1953-02-01), Forman
patent: 2868494 (1959-01-01), Kearns, Jr. et al.
patent: 2916045 (1959-12-01), Auch
patent: 3437082 (1969-04-01), Bouwkamp et al.
patent: 3704705 (1972-12-01), Eckhart

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