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:
Dec. 12, 2000
Filed:
Jan. 14, 1999
Bradley D Cornell, Chicago, IL (US);
John R Krutsch, Lake Villa, IL (US);
James A Patla, Rolling Meadows, IL (US);
Williams Electronics Games, Inc., Chicago, IL (US);
Abstract
A pinball machine has been designed with several novel mechanical and electrical features such that it is easily retrofittable or convertible between a first pinball game and a second pinball game. One of these features is a novel playfield assembly for the pinball machine. For ease of movement of the playfield into and from a cabinet of the pinball machine, the playfield has skid rails which extend substantially along the length of the playfield. The skid rails are spaced from the lower side of the playfield by a distance that is greater than the distance by which components protrude from the lower side of the playfield. Thus, the playfield can be placed on the ground without any chance for damage of its components. The playfield may also include a slide stop at one or both of its ends. The slide stops engage the front molding of the cabinet to ensure the playfield does not fall into the cabinet or fall from the cabinet as the skid rails are being slid across the front molding.