×

Baseball strike indicator

  • US 6,159,113 A
  • Filed: 09/16/1999
  • Issued: 12/12/2000
  • Est. Priority Date: 09/16/1999
  • Status: Expired due to Fees
First Claim
Patent Images

1. An apparatus for visually indicating if a thrown object of known dimensions passes through a preselected volume, comprising:

  • a first light source for emitting an array of spaced-apart parallel, distinct light beams of a first color in a first direction;

    a second light source for emitting an array of spaced-part parallel, distinct light beams of a second color different from said first color in a second direction such that the light beams from the first and second light sources intersect entirely within the preselected volume, the spacing of the light beams being such that light beams from each of said first and second light sources will shine simultaneously on the thrown object when the object is within the preselected volume so as to provide a visual indication that the object is within the preselected volume.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×