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Linear oscillator

  • US 6,958,553 B2
  • Filed: 07/03/2003
  • Issued: 10/25/2005
  • Est. Priority Date: 09/29/2000
  • Status: Expired due to Fees
First Claim
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1. A linear oscillator, comprising:

  • a reciprocatable moving part;

    a case containing the moving part;

    an amplitude control spindle moveably supported in the case;

    an electromagnetic driving part housed in the case for reciprocating the moving part, wherein the electromagnetic driving part comprises;

    at least one permanent magnet, and at least one coil surrounding the moving part; and

    a spring member disposed at least between the case and the moving part and between the case and the amplitude control spindle to form a spring oscillation system, wherein the moving part and the amplitude control spindle reciprocate at or near to a resonance frequency of the linear oscillator.

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