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Golf ball

  • US 5,888,150 A
  • Filed: 05/19/1997
  • Issued: 03/30/1999
  • Est. Priority Date: 05/19/1997
  • Status: Expired due to Fees
First Claim
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1. A golf ball comprising in combination:

  • a top hemisphere having an outer surface, a hollow interior and a peripheral edge;

    a bottom hemisphere having an outer surface, a hollow interior and a peripheral edge;

    a core of a wound compressible material, the core positioned intermediate the top hemisphere and the bottom hemisphere, the bottom and top hemispheres being joined along their peripheral edges;

    the top hemisphere being defined by an outer smooth and dimpleless surface;

    the bottom hemisphere being defined by an outer and dimpleless smooth surface;

    said bottom and top hemispheres defining a perfectly smooth, dimpleless and spherical golf ball having a constant diameter of 1.75 inches as determined by roundness measuring steps including providing a testing apparatus including upper and lower glass plates separated from one another by four support legs for adjusting a distance between the top and bottom glass plates and further ensuring that the upper and lower glass plates remain at a fixed distance from one another;

    positioning the golf ball in between the two glass plates;

    adjusting the upper plate until the same lightly contacts the surface of the golf ball and allowing the golf ball to roll in between the two plates; and

    monitoring any changes in an amount of force needed to roll the ball in between the plates for detecting the presence of an imperfection upon the surface of the ball or an out-of-round ball.

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