发明名称 Jet bumper for a pinball game
摘要 The jet bumper of the invention consists of a body mounted to the playfield. A solenoid actuator and rebound ring are mounted on the body. An eddy current sensor is disposed about the body to detect the approach of a ball. Upon detection of the ball, the eddy current sensor energizes the solenoid actuator to retract the rebound ring and propel the ball.
申请公布号 US5697612(A) 申请公布日期 1997.12.16
申请号 US19950489821 申请日期 1995.06.13
申请人 WILLIAMS ELECTRONICS GAMES, INC. 发明人 PIOTROWSKI, PETER J.;ROEDER, WALTER D.
分类号 A63F7/30;(IPC1-7):A63F7/30 主分类号 A63F7/30
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