Filter and method of filtering a fluid

Details Filter and method of filtering a fluid Filter and method of filtering a fluid

2008-03-05

2009-12-15

Popovics, Robert James (Department: 1797)

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Fluid current controlled cyclic system

C210S136000, C210S167020, C210S167040, C210S252000, C210S258000, C210S424000, C210S428000, C123S1960AB

Reexamination Certificate

active

07632398

ABSTRACT:
A filter including a first chamber; a second chamber; a piston having a head portion disposed in the first chamber and a rod portion disposed in the second chamber; a third chamber containing a filter medium, having an inlet communicating with the second chamber and an outlet; first and second conduits supplying fluid under pressure to the first and second chambers, respectively; and a valve in the first conduit operable to direct fluid under pressure to opposite sides of the piston head portion to reciprocate the piston and correspondingly eject fluid in the second chamber through the third chamber.

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patent: 2006/0131220 (2006-06-01), Lockwood
patent: 2009/0223905 (2009-09-01), Cummings
United States Patent & Trademark Office Class 210 Schedule—Class 210 Liquid Purification or Separation, Oct. 2006, 14 Pages.
United States Patent & Trademark Office Class 210 Definitions—Class 210 Liquid Purification or Separation, Oct. 2006, 129 Pages.

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