×

Diaphragm for attenuating harmonic response in an electroacoustic transducer

  • US 4,581,496 A
  • Filed: 09/04/1979
  • Issued: 04/08/1986
  • Est. Priority Date: 09/04/1979
  • Status: Expired due to Term
First Claim
Patent Images

1. A diaphragm for use in an electroacoustic transducer to attenuate the harmonic content of a desired frequency of vibration, comprising a planar substrate including a circular isolating ridge surrounding a central portion and means for allowing said central portion to vibrate in a piston-like manner, said means for allowing including a plurality of inwardly curved slots surrounding said central portion with each said slot having opposite end portions angularly overlapping and in spaced relation to the end portions of adjacent slots, said angularly overlapping end portions forming a plurality of substantially rectangular areas of said substrate therebetween to allow most of the flexing of said substrate to occur in said substantially rectangular areas and thereby allow said central portion to vibrate in a piston-like manner.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×