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Hand tool driven by DC battery with multiple level battery condition indicator

  • US 5,293,156 A
  • Filed: 02/10/1992
  • Issued: 03/08/1994
  • Est. Priority Date: 02/15/1991
  • Status: Expired due to Term
First Claim
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1. A hand tool including:

  • a main body having a DC source;

    a tool section connected to the main body;

    a plurality of LEDs provided on the main body;

    a motor for driving the tool section;

    means electrically connected between the DC source and the plurality of LEDs, for turning on, in sequence, the LEDs in accordance with power remaining in the DC source; and

    flickering means electrically connected between the LEDs and the motor, and to the DC source, for turning on and off all of the LEDs when the motor is overloaded while in operation.

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