The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 24, 1984
Filed:
Jan. 05, 1982
Masaya Nakamura, Tokyo, JP;
Namco Limited, Tokyo, JP;
Abstract
A game machine has a plurality of targets which unpredictably come out and disappear from their corresponding holes at the surface of a table on a game stand. A player can only strike targets which are positioned above the surface thereof. A main shaft is provided with the target on its upper end and is supported by bearings in such a manner that it can rotate and move up and down. A plunger disposed at the periphery of the main shaft is magnetically attracted by an electromagnetic solenoid. When raised, the main shaft always faces a predetermined direction due to an action of permanent magnets. Hitting of the target can be detected by monitoring abrupt large fluctuations in current flowing through the solenoid during a period of time that the target is caused to appear above the table.