Finger hole insert for bowling balls

Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target

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Details

A63B 3700

Patent

active

043818633

ABSTRACT:
To augment the spin and lift imparted to a bowling ball as it leaves the hand of the bowler, there are mounted in the finger holes inserts having inwardly protuberant ridges at the rims thereof. The tips of the fingers are hooked around these ridges when the ball is gripped, and continue to be at least partially hooked therearound during release of the ball, so that there is sufficient force imparted to the ball during release to create improved spin and lift. There is provided on the inner ends of the inserts walls having central holes therethrough, for purposes of aiding insertion of the inserts, relieving air pressure, and permitting inspection at any time.

REFERENCES:
patent: 447011 (1891-02-01), Harman
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patent: 2273199 (1942-02-01), Hilton et al.
patent: 2482190 (1949-09-01), Kramer
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patent: 2708578 (1955-05-01), Mitchell
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patent: 3078097 (1963-02-01), Mitchell
patent: 3271031 (1966-09-01), Mitchell
patent: 3454440 (1969-07-01), Vezirakis
patent: 3784198 (1974-01-01), Bach
patent: 3804412 (1974-04-01), Chetirko

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