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Brush cutter emergency stop system

  • US 20030074873A1
  • Filed: 09/19/2002
  • Published: 04/24/2003
  • Est. Priority Date: 09/19/2001
  • Status: Active Grant
First Claim
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1. Safety apparatus for a tool driven by a motor at a high speed, comprising:

  • a housing for mounting the tool, said housing being movable over a ground surface; and

    a ground engaging member disposed to follow the ground surface as said housing moves over the ground surface, said ground engaging member being moveable relative to said housing; and

    a sensor for measuring a distance said ground engaging member moves relative to said housing; and

    means for stopping the motor when said ground engaging member moves a predetermined distance relative to said housing.

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