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Lever-action motorized earth drill

  • US 4,979,578 A
  • Filed: 02/26/1990
  • Issued: 12/25/1990
  • Est. Priority Date: 02/21/1989
  • Status: Expired due to Fees
First Claim
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1. A motorized earth drill, comprising:

  • (a) a straight rigid lever pivotally mounted on an axle supported by a pair of wheels; and

    (b) motorized digging means pivotally connected to a first end of the lever, the second end of the lever adapted for exertion of vertical forces thereupon, the distance from the locus of support of the lever by the axle to the first end of the lever defining a first lever arm, the distance from the locus of support by the axle to the second end of the lever defining a second lever arm, the ratio of the second lever arm to the first lever arm being at least about 1;

    1.

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