Multi-port valve assembly

Details Multi-port valve assembly Multi-port valve assembly

1984-11-16

1986-03-18

Cohan, Alan

Fluid handling

Systems

Programmer or timer

251901, F15B 2102

Patent

active

045762015

ABSTRACT:
A multi-port fluid valve apparatus is used to control the flow of fluids through a plurality of valves and includes a web, which preferably is a stainless steel endless belt. The belt has an aperture therethrough and is progressed, under motor drive and control, so that its aperture is moved from one valve mechanism to another. Each of the valve mechanisms comprises a pair of valve blocks which are held in fluid-tight relationship against the belt. Each valve block consists of a block having a bore through which the fluid flows, a first seal surrounding the bore and a second seal surrounding the first seal, with the distance between the first and second seals being greater than the size of the belt aperture. In order to open a valve, the motor progresses the belt aperture to where it is aligned with the two bores of a pair of valve blocks, such alignment permitting a flow of the fluid through the valve. The valve is closed by movement of the belt aperture and its replacement, within the pair of valve blocks, by a solid portion of the belt.

REFERENCES:
patent: 3166291 (1965-01-01), Grove
patent: 3177989 (1965-04-01), Scott
patent: 3198084 (1965-08-01), Hague
patent: 3602096 (1971-08-01), Toth
patent: 3936031 (1976-02-01), Berman

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