Bowling ball including thumb-hole insert

Details Bowling ball including thumb-hole insert Bowling ball including thumb-hole insert

1984-02-17

1985-07-23

Marlo, George J.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273 63B, A63B 3700

Patent

active

045305021

ABSTRACT:
The present invention is a thumb insert which a bowler uses with a bowling ball having a thumb-hole which has an internal cylindrical sidewall. The thumb insert is disposed in and fixedly coupled to the internal cylindrical sidewall of the thumb-hole. The thumb insert includes an integral member which is formed from a non-metallic, flexible material. The integral member has a substantially semi-cylindrical base portion which is fixedly coupled to the internal cylindrical sidewall of the thumb-hole of the bowling ball adjacent to the bottom portion thereof. The integral member also has a slightly curved portion against which the bowler places the back of his thumb so that the front of his thumb contacts the internal cylindrical sidewall of the thumb-hole of the bowling ball. The substantially semi-cylindrical base portion is resiliently coupled to the slightly curved portion whereby the bowler can resiliently and snugly insert his thumb into the thumb-hole of the bowling ball.

REFERENCES:
patent: 1021490 (1912-03-01), Scully
patent: 2708578 (1955-05-01), Mitchell
patent: 3089702 (1963-05-01), MacDonald
patent: 3253827 (1966-05-01), Mills
patent: 3963238 (1976-06-01), Patrignani

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