Flexible magnet

• US 5,621,369 A
• Filed: 09/18/1995
• Issued: 04/15/1997
• Est. Priority Date: 09/18/1995
• Status: Expired due to Fees

• Current Assignee: Adolph N. Anderson, William H. Gardiner
• Original Assignee: Adolph N. Anderson, William H. Gardiner
• Inventors: Gardner, heir, William H., Gardner, Harris L.
• Primary Examiner(s): DONOVAN, LINCOLN D
• Application Number:
  US08/529,613
• Time in Patent Office: 575 Days
• Field of Search: 335/302-306, 600/9, 600/12, 600/15, 5/906
• US Class Current: 335/302
• CPC Class Codes: A61N 2/06 using magnetic fields produced by permanent magnets A61N2/12 takes precedence
• CPC Class Codes: H01F 1/117 Flexible bodies
• CPC Class Codes: H01F 7/0215 Flexible forms, sheets

Abstract

A flexible magnetic sheet is made of a rubbery synthetic material in which magnetic ferrite particles have been embedded and which one surface of the sheet has a grid pattern of ridges and depressions. The magnetic material is magnetized so that one pole is one each surface. The magnetic lines of force are generated substantially in a plane.

Claims

1. A substantially flat body of magnetic particles of ferrite material embedded therein, said particles being magnetized to form N poles on one surface and S poles on the opposite surface, one surface having a plurality of valleys and hills in a pattern consisting of a grid of polygon depressions.

2. A body as in claim 1 wherein the polygons are pyramidal.

3. A substantially flat body of magnetic particles of ferrite material embedded therein, said particles being magnetized to form N poles on one surface and S poles on the opposite surface, one surface having a plurality of valleys and hills in a pattern, said valleys having apertures therein.