Filter apparatus

  • US 5,186,825 A
  • Filed: 11/13/1990
  • Issued: 02/16/1993
  • Est. Priority Date: 01/12/1989
  • Status: Expired due to Fees
First Claim
Patent Images

1. A filter system for separating particles from a fluid, comprising:

  • a filter element defining an upstream side and a downstream side;

    side filter element being assembled from a plurality of substantially disk elements with cooperating surfaces, said plurality of substantially disk elements comprising at least one substantially disk element of relatively fine, porous material disposed between at least two substantially disk elements of relatively coarse, porous material, said filter element further including at least first and second relatively rigid divider elements each having raised, elongated grooves defined on first and second opposite sides thereof, said substantially disk elements of porous material being supported between said at least first and second relatively rigid divider elements such that one of said substantially disk elements of relatively course, porous material engages said elongated grooves on said first side of said first divider element to define elongated chambers terminating in downstream openings in communication with said downstream side and said other of said substantially disk elements of relatively coarse, porous material engages said raised elongated grooves on said second side of said second divider element to define elongated chambers terminating in upstream openings in communication with said upstream side; and

    means for separating particles from said filter element disposed to provide communication with said downstream openings.

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