Self dislodging filter element

  • US 7,704,384 B2
  • Filed: 11/02/2005
  • Issued: 04/27/2010
  • Est. Priority Date: 11/02/2004
  • Status: Active Grant
First Claim
Patent Images

1. A self dislodging filter assembly comprising:

  • a thimble shaped filter mesh element having an open end portion for trapping a plurality of contaminants in a fluid flowing in a conduit;

    a reservoir disposed downstream of the conduit and in fluid communication with the conduit; and

    an annular-shaped magnet that embeds the filter mesh element at the open end portion to form a filter , the magnet having a predetermined magnetic field strength to hold the filter in place in the conduit, wherein the magnet adheres the filter to an interior wall of the conduit and secures the filter in place in the conduit, the filter remaining in place until a fluid pressure impinging on the filter is sufficient to overcome the magnetic field strength causing the filter to dislodge from the interior conduit wall and travel downstream in the fluid flow, and drop into the fluid reservoir and out of the fluid flow.

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