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:
Aug. 12, 1980
Filed:
Sep. 18, 1978
Ronald P Eckert, Northbrook, IL (US);
Thomas A. Schutz Co., Inc., Morton Grove, IL (US);
Abstract
A device for selectively displaying alphabetic or numeric characters has a housing which contains several stacked prefabricated subassemblies of any required number of units, each unit having an opaque front plate with a rectangular layout of light permeable spots; and there are film receiving slots with guides at both sides of each unit so that a selected part of a film member associated with a unit may abut the front plate while the rest of the film member is curved rearwardly through the slots. One type of film member has a geometric pattern of matching and contrasting elements which cooperate with light permeable spots forming a block number 8 to define any desired arabic numeral from 0 to 9; while another type of film member has a similar geometric pattern that cooperates with light permeable spots in several parallel vertical columns to define any letter of the alphabet. In either case, several matching and contrasting elements define parts of more than one character, so the film member is relatively short; and index numbers or letters along the top of the film member cooperate with an index element on the housing to visually indicate when a desired numeral or letter is defined.