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Composite article with highly filled plastic component

  • US 6,967,047 B2
  • Filed: 02/07/2001
  • Issued: 11/22/2005
  • Est. Priority Date: 02/09/2000
  • Status: Active Grant
First Claim
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1. A plastic bonded permanent magnet which comprises:

  • a filled plastic component defining a first axial face, wherein said filled plastic component is comprised of a plastic matrix, and permanent magnetic particles as a filler embedded within the plastic matrix in an amount sufficient to render the filled plastic component permanently magnetic;

    a basic body defining a second axial face which is opposed to said first axial face of said filled plastic component; and

    an intermediary component formed of an elastic material which is sandwiched between and indirectly connects said opposed respective first and second axial faces of said filled plastic component and said basic body one to another, whereinsaid intermediary component comprises plural projections extending outwardly therefrom toward said respective first axial face of said filled plastic component, and whereinsaid filled plastic component includes plural recesses formed in said respective first axial face thereof which oppose said plural projections of said intermediary component, and whereineach of said projections of said intermediary component is received within an opposed respective one of said recesses of said filled plastic component so as to connect indirectly said opposed respective first and second axial faces of said filled plastic component and basic body one to another by means of frictional and/or positive connection.

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