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US 4,991,846 AGranted
Variable position target assembly
AssigneeWilliams Electronics Games, Inc.
InventorDonald M. Sondej
Life of this patent
Estimating the term…
Abstract
A variable position target assembly for pinball machines comprises a target and shaft assembly mechanically linked to an opto-interrupter or other transducer. As the shaft assembly is linearly displaced incrementally, its movement causes the transducer to signal at each increment a main processing unit of the pinball game to assign a score or other award.
Claims10
A variable position target assembly for pinball games, comprising:
- a target connected to one end of a linearly displaceable shaft, said shaft being supported on a playfield for linear displacement in response to being struck by a pinball;
- and,
- transducing means for converting the linear position of said shaft to an electrical signal, said electrical signal indicating discretely the position of said shaft at a plurality of points along the longitudinal axis of said shaft.
Dependencies are inferred from the claim text.