Bowling ball insert providing finger tip gripping

Details Bowling ball insert providing finger tip gripping Bowling ball insert providing finger tip gripping

2007-05-22

2007-05-22

Pierce, William M. (Department: 3711)

Games using tangible projectile

Bowling

Ball

Reexamination Certificate

active

11035871

ABSTRACT:
A finger grip system is provided for obtaining maximum rotation and a resulting pronounced hook when releasing a bowling ball. The system includes drilled holes for receiving a bowler's middle finger, ring finger and thumb, the holes being spaced such that only fingertips may be inserted into the holes. Inserts are placed in the holes, the inserts having a resilient frictional character, and defined therein lips at the corner of a bottom surface and a wall of a central aperture. The inserts are sized to locate the lips such that dominant upward force applied by the fingers and thumb results from contact of finger and thumb tips rather than other parts of the fingers. Force applied in this manner results in increased rotation of bowling balls.

REFERENCES:
patent: 3425133 (1969-02-01), Smith
patent: 3538515 (1970-11-01), Brown
patent: 4381863 (1983-05-01), Norman
patent: 5176378 (1993-01-01), Bernhardt
patent: 5972009 (1999-10-01), Fortier et al.

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