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:
Oct. 18, 1983
Filed:
Nov. 10, 1980
Edward J Collins, Mentor-on-the-Lake, OH (US);
Mary E Suster, Chagrin Falls, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A modified conductive ink is provided for a photoflash array having a plurality of high voltage flash lamps connected to a lamp firing circuit pattern deposited on a circuit board with radiation-sensitive switches and fuse elements being connected in said circuit pattern for sequential firing of said flash lamps, said fuse elements being provided by narrowing the width of the circuit pattern at the fuse locations and undergoing thermal decomposition activated with radiation, wherein the improvement comprises a modified carbon ink containing a particulated electrically conductive material such as conductive powdered carbon incorporated therein. Increased electrical conductivity is provided at the fuse locations before thermal decomposition of the fuse elements takes place together with increased residual electrical resistance being provided by the thermally decomposed fused elements.