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Pleated belt filter with suction means to remove debris

  • US 5,560,835 A
  • Filed: 07/11/1995
  • Issued: 10/01/1996
  • Est. Priority Date: 07/11/1995
  • Status: Expired due to Term
First Claim
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1. A self-cleaning filter apparatus for use in removing particulate matter from a transport fluid, said filter comprising:

  • (a) a permeable substrate formed as an endless belt and having a plurality of pleats of filter media extending outwardly from one surface of said substrate, said pleats being arranged on said substrate so that said fluid can pass inwardly therethrough and deposit said particulate material on the exterior surface of said pleats;

    (b) a housing that includes;

    (i) a support frame for supporting said endless belt for movement along a predetermined path that includes at least one straight reach in which said pleats extend outwardly from said substrate in generally spaced parallel relation to one another, and at least one curved reach in which said pleats extend outwardly from said substrate in angular relation to one another such that the spacing between adjacent pleats increases along the outwardly extending direction thereof;

    (ii) at least one drive element engaging said endless belt to move it along said predetermined path;

    (iii) a clean fluid chamber disposed at the interior portion of said endless belt from which said transport fluid can be removed after it has passed through said pleats; and

    (c) a suction nozzle positioned adjacent the outer surface of said endless belt at said curved reach thereof for removing said particulate matter deposited on said pleats.

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