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Electronic drill guide

  • US 9,114,494 B1
  • Filed: 03/14/2013
  • Issued: 08/25/2015
  • Est. Priority Date: 03/14/2013
  • Status: Active Grant
First Claim
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1. An apparatus for facilitating the alignment of a power tool substantially parallel or substantially orthogonal with respect to the Earth'"'"'s gravity, comprising:

  • a. an enclosure suitable for attachment to said power tool;

    b. at least three accelerometers fixed to said enclosure, said accelerometers being orthogonal to each other, said accelerometers having outputs;

    c. a processing circuit connected to said accelerometer outputs;

    d. a noise generator connected to said processing circuit; and

    e. a projection display connected to said processing circuit, said projection display comprising at least four addressable laser line projectors,whereby the orientation of said power tool with respect to the Earth'"'"'s gravity may be deduced from viewing said projection display'"'"'s output.

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