Patent ID: 6142881
Filing Date: 2000-11-07
Classification: A63B,Y10S

Abstract:
A soft, deformable insert for a bowling ball, sized to fit within a drilled finger hole of the ball and anatomically configured in exact size and shape to receive a bowler's finger placed within the insert, the insert comprising:a cylinder formed of a soft, deformable, resilient elastomer and having an outer surface disposed to contact and be affixed to an inner surface of a finger hole of a bowling ball;the cylinder having an inner surface defining a hollow space configured to an unique anatomical shape of a finger disposed within and coaxial with, the cylinder, with a central opening in one end to receive a bowler's finger, and a central opening in an opposite end communicating with an outer surface of the end of the cylinder;the cylinder further defining a plurality of cylindrical spaces disposed within the cylinder, parallel with the long axis of the cylinder, all cylindrical spaces being disposed to one side of a mid-axial plane of the cylinder and opening to the outer surface of both ends of the cylinder, the plurality of cylindrical spaces serving to transmit air to the atmosphere and to accept an increase in volume of the inner hollow space when the inner hollow space is deformed by an increase in girth of the bowler's finger, to thereby automatically accommodate natural changes in finger girth which occur during bowling without requiring the bowler to change bowling balls or inserts.