Games using tangible projectile – Bowling – Ball handling or diverting means
Patent
1996-12-12
1997-10-28
Grieb, William H.
Games using tangible projectile
Bowling
Ball handling or diverting means
A63D 500
Patent
active
056812248
ABSTRACT:
In construction of a bumper system for bowling including a movable bumper bar adapted for demarcating a lane and a gutter, the bumper bar is selectively and automatically set to operative and stand-by positions by a hydraulic cylinder which is activated on receipt of a drive signal. The drive signal is generated either by players' manual operation on an activation switch at a scoring panel or by a properly programmed control switch circuit. Any conventional, manual bumper system can be automatized by minimal reformation.
REFERENCES:
patent: 4900024 (1990-02-01), Chandler et al.
Asahi Engineering & Trading Co., Ltd.
Grieb William H.
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