Re-usable piston filter system

Details Re-usable piston filter system Re-usable piston filter system

1995-10-31

1996-08-27

Walker, W. L.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Vent control

210359, 210472, 21049701, 422101, B01D 3301

Patent

active

055498167

ABSTRACT:
A re-usable piston filter including an elongated tubular barrel member with a closed lower end and an open upper end, an elongated tubular piston member having an open upward end and a fluid-permeable lower end, and filter means detachably secured to the lower end of the piston. Downward movement of the piston in the barrel forces liquid in the barrel through the filter and into the tubular piston. An air valve in the barrel can be opened to enable the piston to be withdrawn from the barrel. The filter at the lower end of the piston can be changed or removed as desired.

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