Fastening method using polymer-based magnets

• US 3,897,288 A
• Filed: 06/01/1971
• Issued: 07/29/1975
• Est. Priority Date: 07/31/1969
• Status: Expired due to Term

• Current Assignee: Richard E. Fayling
• Original Assignee: Richard E. Fayling
• Inventors: Fayling, Richard E.
• Primary Examiner(s): Lesmes, George F.
• Assistant Examiner(s): Roche, R. J.
• Application Number:
  US05/148,991
• Time in Patent Office: 1,519 Days
• Field of Search: 156/243,60,309 24/203,204,73MS,201 161/402,406,167 52/483,DIG.4 269/8 293/1,62 335/285 248/26A
• US Class Current: 156/289
• CPC Class Codes: B23Q 3/1546 using permanent magnets
• CPC Class Codes: Y10S 428/90 Magnetic feature
• CPC Class Codes: Y10S 52/04 Magnetic connecting means for building components
• CPC Class Codes: Y10T 24/32 having magnetic fastener

Abstract

Fasteners and fastening methods that concurrently apply magnetic forces and adhesive forces to fasten articles together. In a fastener of the invention, layers of a reactive adhesive are carried on exterior bonding faces of a magnetized polymer-based main body portion of the fastener. In other embodiments of the invention, a polymer-based magnet that may or may not carry exterior adhesive layers is placed between adjacent articles during a fastening operation to apply a magnetic force tending to draw the articles together and to apply pressure on adhesive material disposed between the articles.

Claims

1. A METHOD FOR FORMING A LONG NARROW ADHESIVE BOND FASTENING AT LEAST TWO MAGNETIZABLE ARTICLES TOGETHER COMPRISING 1) DISPOSING REACTIVE ADHESIVE MATERIAL BETWEEN THE ARTICLES THAT CURES TO FORM SAID ADHESIVE BOND, CONCURRENTLY 2) DISPOSING A DISCRETE FLEXIBLE SELF-SUPPORTING POLYMER-BASED MAGNET IN ELONGATED STRIP FORM ADJACENT A SUBSTANTIAL LENGTH OF THE ARTICLES AND ADJACENT BUT NOT BONDED TO A SUBSTANTIAL LENGTH OF THE ADHESIVE MATERIAL BETWEEN THE ARTICLES, 3) ARRANGING THE ARTICLES SO THAT PORTIONS OF THE ARTICLES ARE JOINED TO FORM A PHYSICAL LINK OF MAGNETIZABLE MATERIAL EXTENDING CONTINUOUSLY FROM ONE POLE TO THE OPPOSITE POLE OF THE MAGNET EXCEPT WHERE INTERRUPTED BY ADHESIVE MATERIAL, WHEREBY OPPOSITE MAGNETIC POLES OCCUR AT OPPOSITE SIDES OF THE ADHESIVE MATERIAL, MAGNETIC LINES OF FORCE ARE CONCENTRATED THROUGH THE ADHESIVE MATERIAL, AND A MAGNETICALLY STABLE ARRANGEMENT IS FORMED IN WHICH A MAGNETIC FORCE DRAWS THE ARTICLES TOWARD ONE ANOTHER TO PLACE THE ADHESIVE MATERIAL UNDER COMPRESSION, AND (4) REMOVING THE MAGNET FROM ITS POSITION AFTER THE ARTICLES ARE FASTENED TOGETHER.

2. A method of claim 1 in which any surface of the magnet that will contact adhesive material during the fastening operation is covered with a layer of release material to which the adhesive material will not adhere.

3. A method of claim 1 in which the magnet is covered with a low-friction material to reduce the force required to draw the magnet along a substrate.

4. A method of claim 1 in which the magnet is positioned between at least portions of the two articles being adhered together.