Combined filter and valve mechanism

Details Combined filter and valve mechanism Combined filter and valve mechanism

1986-03-25

1988-03-29

Fisher, Richard V.

Liquid purification or separation

Filter

Movable medium

210429, 261 641, 261122, 137547, B01D 3502, F16K 2100

Patent

active

047341947

ABSTRACT:
A combined valve and filter mechanism for use in chemical apparatus comprises a valve body having a valve seat connected thereto. A valve stem has a valve at one end thereof for engaging said valve seat and has a cylindrical filter element for telescoping within the valve seat. The mechanism permits filtration of the chemical in situ without a separate filtering mechanism while providing a valve which when open or closed permits the agitation of the chemical in the apparatus without interference with or from the valve and vice versa. In the fully open position, the entire contents of the apparatus can be withdrawn from the apparatus.

REFERENCES:
patent: Re29524 (1978-01-01), Spencer
patent: 517550 (1894-04-01), Messinger
patent: 554281 (1896-02-01), Linke et al.
patent: 820146 (1906-05-01), Simonds
patent: 1985858 (1934-12-01), Gerdts
patent: 2001610 (1935-05-01), Hildenbrand
patent: 3233980 (1966-02-01), Fox et al.
patent: 4139585 (1979-02-01), Kirschner et al.
patent: 4402214 (1983-09-01), Morgan et al.
patent: 4529514 (1985-07-01), Gruett

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