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ENVIRONMENTALLY ADVANTAGEOUS ELECTRIC DRILL WITH EFFICIENCY PROMOTING CHARGE STATE INDICATOR

  • US 20100071921A1
  • Filed: 09/24/2008
  • Published: 03/25/2010
  • Est. Priority Date: 09/24/2008
  • Status: Abandoned Application
First Claim
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1. A drill, comprising:

  • (a) a drill housing comprising a handle portion and a driver portion;

    (b) an electrical drill motor located in said driver portion, said drill motor having an output shaft for coupling output rotary power;

    (c) an electrical switch for controlling the operation of said drill motor, said electrical switch being located on said handle portion of said drill housing;

    (d) a chuck coupled to the output shaft of said drill motor;

    (e) charge state measuring circuitry having a plurality of output terminals, actuation of said output terminals or combination of output terminals each corresponding to a particular state of charge;

    (f) a red indicator light coupled to one of said output terminals, said one of said output terminals indicating a relatively poor state of charge;

    (g) a green indicator light coupled to one of said output terminals, said one of said output terminals indicating a relatively good state of charge; and

    (h) a charge test switch for actuating said charge state measuring circuitry.

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