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. 11, 1981
Filed:
Apr. 07, 1980
Applicant:
Inventors:
Howard L Beckerman, Middletown, NJ (US);
William S Trimmer, Belle Mead, NJ (US);
Assignee:
The Singer Company, Stamford, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
315161 ; 3151691 ; 315313 ; 315317 ; 3401 / ; 340780 ;
Abstract
A display system utilizing incandescent lamps arranged at the intersection points of a matrix array of row and column conductors includes a plurality of load resistors connecting the row conductors to a first voltage source and a plurality of load resistors connecting the column conductors to a second voltage source. To energize a selected lamp, the row conductor connected to that lamp is connected to the second voltage source and the column connected to that lamp is connected to the first voltage source.