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BRAKE LINING WEAR INDICATOR

  • US 3,556,258 A
  • Filed: 11/06/1968
  • Issued: 01/19/1971
  • Est. Priority Date: 11/06/1968
  • Status: Expired due to Term
First Claim
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1. In a brake:

  • a member to be braked;

    a friction member having a lining for engagement with said member to be braked;

    probe means carried by said friction member for engagement with said member to be braked after a predetermined amount of lining wear;

    indicator means;

    a voltage source;

    transistorized control means operatively connected between the voltage source, the probe means, the indicator means, and an electrical ground for actuating said indicator means upon said predetermined amount of lining wear; and

    said transistorized control means including transistor means having an input element and an output element, said output element being in series flow relationship with said indicator means, said voltage source and said ground, and bias means connected to said input element, said input element being responsive to said probe means to switch the transistor means upon engagement of the probe means with the member to be braked.

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