Volume measurement apparatus and method

  • US 5,739,426 A
  • Filed: 04/28/1997
  • Issued: 04/14/1998
  • Est. Priority Date: 01/19/1996
  • Status: Expired due to Fees
First Claim
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1. A volume measurement apparatus comprising a first leg hingedly attached to a second leg, a first sensor disposed at an extreme of said first leg opposite said second leg, a second sensor disposed at an extreme of said second leg opposite said first leg, a third sensor disposed at an intersection of said first leg and said second leg, a volume measurement means electrically connected to the sensors, a trackball rotatably attached to said second leg, and a track ball movement detection means electrically connected to said trackball and to said volume measurement means.

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