Cock with ball-shaped stopper

Details Cock with ball-shaped stopper Cock with ball-shaped stopper

1990-09-17

1991-07-16

Fox, John C.

Valves and valve actuation

Rotary valves

Plug

251314, F16K 506

Patent

active

050318764

ABSTRACT:
An improved valve with ball-shaped stopper, comprising a valve housing in which the stopper forms a seal with two faces developing in parallel planes opposite each other and in which the ball-shaped stopper, the stopper handle and the control rod connecting them are formed in a single rigid piece. The stopper component is provided, on the stopper and on the part of the control rod adjacent to it, with a coating of a sealant which forms the seal toward the outside of the valve preventing fluid from leaking, and also forms the seal within the valve which regulates fluid flow.

REFERENCES:
patent: 3157382 (1964-11-01), Perry
patent: 3334650 (1967-08-01), Lowrey et al.
patent: 3450151 (1969-06-01), Hurzenroeder
patent: 3951380 (1976-04-01), Oliva-Bonino
patent: 4441524 (1984-04-01), Mese
patent: 4488573 (1984-12-01), Ringom
patent: 4778152 (1988-10-01), Logman
patent: 4809949 (1989-03-01), Rahieshi

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