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

• Current Assignee: Fred L. Bartels
• Original Assignee: Fred L. Bartels
• Inventors: Bartels, Fred L.
• Application Number:
  US04/047,074
• Time in Patent Office: 1,652 Days
• US Class Current: 29/432
• CPC Class Codes: B21D 49/00 Sheathing or stiffening objects by winding wire or tape thereon B65H54/00, B65H81/00; specially adapted for manufacturing conductors or cables H01B13/26
• CPC Class Codes: Y10S 55/31 Filter frame
• CPC Class Codes: Y10T 29/49833 Punching, piercing or reaming part by surface of second part
• CPC Class Codes: Y10T 29/49915 Overedge assembling of seated part
• CPC Class Codes: Y10T 29/49925 Inward deformation of aperture or hollow body wall
• CPC Class Codes: Y10T 29/53791 Edge binding
• CPC Class Codes: Y10T 428/24198 Channel-shaped edge component [e.g., binding, etc.]

Claims

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.