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Method of attaching frames to air filters and the like

  • US 3,168,917 A
  • Filed: 08/02/1960
  • Issued: 02/09/1965
  • Est. Priority Date: 08/02/1960
  • Status: Expired due to Term
First Claim
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1. THE METHOD OF MOUNTING A CHANNEL OF SEMI-RESILIENT READILY DEFORMABLE MATERIAL HAVING A WEB AND TWO FLANGES EXTENDING THEREFROM ONTO AN OBJECT HAVING TWO SIDES TERMINATING IN AN EDGE, SAID METHOD COMPRISING POSITIONING SAID CHANNEL ON SAID OBJECT WITH SAID WEB EXTENDING ALONG SAID EDGE AND SAID TWO FLANGES EXTENDING OVER THE EDGE AREAS OF SAID TWO SIDES, RESPECTIVELY;

  • APPLYING PRESSURE TO THE OUTER SURFACE OF SAID TWO FLANGES TO BEND SAID FLANGES INWARDLY WITH PERMANENT DEFORMATION OF THE MATERIAL SUBSTANTIALLY TO THE DESIRED POSITION IN RELATION TO SAID SIDES OF SAID OBJECT AND AT THE SAME TIME TO FLEX SAID WEB INWARDLY IN THE DIRECTION OF SAID EDGE;

    AND THEREAFTER RELEASING SAID PRESSURE TO PREMIT SAID WEB TO UNFLEX AND THEREBY URGE SAID FLANGES TOWARD EACH OTHER.

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