×

Fluid filter medium including a tubular fabric member

  • US 5,013,438 A
  • Filed: 11/14/1989
  • Issued: 05/07/1991
  • Est. Priority Date: 11/14/1989
  • Status: Expired due to Fees
First Claim
Patent Images

1. A filter medium in combination with a filter element frame including a central cylindrical perforated core and a plurality of attached filter leaves extending radially outward from the core, comprising:

  • a fabric sleeve having opposite ends and a plurality of radially extending pockets configured to enclose the leaves and the outer side, but not the ends, of the perforated core of such filter element frame, with a separate pocket enclosing each such leaf;

    each end of such sleeve terminating in a continuous tubular fabric member extending along the periphery of such end;

    a resilient material filling each such tubular fabric member; and

    each such tubular fabric member being spaced from the outer edge of such pockets, a distance sufficient to enable the tubular fabric member to be compressed against an end of the perforated core and not the leaves of such filter element frame.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×