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:
May. 14, 1985
Filed:
Oct. 24, 1983
Vernon R Spaunhorst, Washington, MO (US);
McGraw-Edison Company, Rolling Meadows, IL (US);
Abstract
A time delay fuse includes a tubular housing of insulative material with first and second open ends. First and second metallic or electrically conductive ferrules are mounted on the first and second ends, respectively, of the tubular housing. A core is positioned within the tubular housing and affixed to the ferrules by electrically conductive material such as solder. At least one short inner wire extends along the core and is electrically and mechanically connected to the solder. A second wire, longer than the first wire, is spirally wound around the core and the first inner wire. The second wire includes first and second ends mechanically and electrically connected to the conductive material such that the first and second wires are electrically parallel.