Ball valve

Details Ball valve Ball valve

2006-05-04

2008-08-12

Fox, John (Department: 3753)

Fluid handling

Systems

Multi-way valve unit

C251S317000

Reexamination Certificate

active

07409966

ABSTRACT:
A ball valve includes a valve seat having a chamber therein and bores communicated with the chamber, a ball, which has a plurality of channels, received in the chamber, a shaft connected to the ball, and a plurality of lids connected to the valve seat to close the bores. The ball valve further includes two plugs received in the chamber, each of which has a through hole and a concave portion fitting the ball to completely cover the ball therein when the first plug is combined with the second plug, a first recess, two second recesses at opposite sides of the first recess and two slot around the second recesses respectively, wherein the slots form two receiving slots when the first plug is combined with the second plug, and two pads, each of which has a through hole, received in the receiving slots respectively to cover the ball.

REFERENCES:
patent: 2905197 (1959-09-01), Janes
patent: 3236495 (1966-02-01), Buchholz
patent: 3675895 (1972-07-01), Matousek
patent: 4026516 (1977-05-01), Matousek
patent: 4441524 (1984-04-01), Mese
patent: 4685488 (1987-08-01), Corbin et al.

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