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Mechanical spring having negative spring stiffness useful in an electroacoustic transducer

  • US 4,722,517 A
  • Filed: 03/26/1986
  • Issued: 02/02/1988
  • Est. Priority Date: 04/26/1983
  • Status: Expired due to Fees
First Claim
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1. A mechanical spring with negative spring stiffness comprising:

  • first and second blade springs, the first blade spring, under the influence of a compressive force which acts in a direction perpendicular to the direction of deflection of the blade spring, being bent in a direction corresponding to said direction of deflection such that two halves of the blade spring are each bent one time, characterized in that the ends and the centers of the first and second blade springs are coupled to each other, the second blade spring is bent under the influence of said compressive force in such a way that the two halves of the second blade spring are each bent one time in a direction corresponding to said direction of deflection, and facing halves of the two blade springs are each bent in opposite directions.

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