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:
Sep. 19, 2000
Filed:
Jan. 14, 1999
Peter J Piotrowski, Long Grove, IL (US);
John R Krutsch, Lake Villa, IL (US);
George A Gomez, Evanston, IL (US);
James A Patla, Rolling Meadows, IL (US);
Charles R Bleich, Cary, IL (US);
Williams Electronics Games, Inc., Chicago, IL (US);
Abstract
A lock-down bar release system for a pinball machine serviceable in a location-service mode and an operator-service mode. The pinball machine includes a playfield disposed within a game cabinet and a lock-down bar for securing a playfield glass over the playfield and onto the game cabinet. A handle mechanism and associated latching structure is operable to release the lock-down bar. In the location-service mode, the movement of the handle and release of the lock-down bar is effected automatically by using a location-service key. In the operator-service mode, the operator uses an operator-service key to access the interior of the game cabinet through a coin door from wherein the operator may physically pull the handle to release the lock-down bar. The pinball machine includes a restraint mechanism for inhibiting removal of the playfield (and thereby preventing access to the coin box or cash box under the playfield) in the location-service mode. The restraint mechanism moves to a non-blocking position when the coin door is opened in the operator-service mode so as to permit removal of the playfield in the operator-service mode.