Filter valve system for regulating, filtering, and dispensing a

Details Filter valve system for regulating, filtering, and dispensing a Filter valve system for regulating, filtering, and dispensing a

1995-10-06

1997-11-04

Walker, W. L.

Liquid purification or separation

With heater or heat exchanger

210234, 210418, 2221462, 425197, 1263435R, 126507, B01D 35027

Patent

active

056835787

ABSTRACT:
An apparatus for controlling and filtering the flow or viscous fluid in a material melting and dispensing device is disclosed. The apparatus includes a rotatable valve assembly having a filter plate and a flow stoppage plate. Rotation of the valve alternately allows or halts the flow of viscous fluid. The convenient ability to block the flow of viscous fluid such as hot melt adhesive at a point immediately downstream of a hopper or material melt space facilitates repair, maintenance, or removal of other downstream elements such as a pump without the need for draining the hopper, while avoiding excessive spillage of hot melt adhesive.

REFERENCES:
patent: 4615812 (1986-10-01), Darling
patent: 4787986 (1988-11-01), Dietl et al.
patent: 4832077 (1989-05-01), Pilolla
patent: 5242581 (1993-09-01), Mohr

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