NOTE: the watermark in the lower right does not appear in the final print.
Pop Up Bumper Pinball Patent
A "pop bumper" for a pinball game which carries a depressible flange for contact with a rolling ball. By this invention a vertically moveable pin engaging the flange is provided. The pin is positioned to move in linear manner between a first vertical position when the flange is depressed and a second vertical position when the flange is not depressed. A spring is provided to urge the vertically movable pin toward one of the vertical positions, typically the second vertical position. A switch is actuated between open and closed positions as the pin moves between the first and second vertical positions. Various functions may be actuated by the switch. For example a ball thruster may be provided to thrust the ball away from the bumper when the vertically moveable pin is moved to typically the first vertical position in which the flange is depressed.
June 12th, 2019
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