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Vibrating reed frequency responsive device

  • US 3,336,529 A
  • Filed: 12/03/1962
  • Issued: 08/15/1967
  • Est. Priority Date: 12/03/1962
  • Status: Expired due to Term
First Claim
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2. A FREQUENCY RESPONSIVE DEVICE COMPRISING:

  • A TACHOMETER FREQUENCY GENERATOR FOR SENSING THE SPEED OF A ROTATING SHAFT INITIATING A VARIABLE FREQUENCY SIGNAL WHICH VARIES FROM A BASE FREQUENCY AS A FUNCTION OF THE CHANGE IN SPEED OF THE SHAFT FROM A PREDETERMINED SPEED;

    A FREQUENCY DISCRIMINATOR INCLUDING TWO CANTILEVER MOUNTED REED ASSEMBLIES EACH MECHANICALLY RESONANT TO FREQUENCIES EQUALLY DISPOSED ON EACH SIDE OF SAID BASE FREQUENCY AND HAVING OVER-LAPPING FREQUENCY RANGES TO WHICH THEY ARE VIBRATIONALLY RESPONSIVE;

    MEANS FOR VIBRAT-

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