Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent
1978-10-23
1980-01-15
Marlo, George J.
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Target
273DIG20, A63B 3710
Patent
active
041835271
ABSTRACT:
A bowling ball which complies with the American Bowling Congress rules and which has the weight thereof distributed in such a manner that when the ball is rolled, the weight distribution produces a gyroscopic effect. The bowling ball has a segmented, light weight core. Two opposed segments are removed from an otherwise spherical core, and another segment positioned normal to the opposed segments is removed from the core. The third segment is replaced with a segment of relatively high density material to form a top weight which offsets the loss in weight occasioned by the subsequent drilling of finger holes. The core is centrally located within the ball and the main body of the ball is made of medium density material so that the main body material which fills the void provided by the two opposed segments provide two parallel arranged weights of medium density. Indicia is provided on the surface of the ball related to the location of the top weight and the stabilizing weights so that the finger holes can be drilled in such a manner that when the ball is released by a player, the ball travels to describe a rolling plane which is parallel to the base of the segments formed by the removal of the two opposed core segments. This provides a gyroscopic effect which stabilizes the ball as it rolls down the bowling lane.
REFERENCES:
patent: 863126 (1907-08-01), Wilson
patent: 2291738 (1942-08-01), Luth et al.
patent: 3318598 (1967-05-01), Ruskin
patent: 3865369 (1975-02-01), Randolph
patent: 4121828 (1978-10-01), Amburgey
Bates Marcus L.
Marlo George J.
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