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:
Mar. 29, 1988
Filed:
Nov. 01, 1985
Francis V Cunningham, Western Springs, IL (US);
Joslyn Corporation, Chicago, IL (US);
Abstract
A fault current interrupting disconnector, or fault disconnector, for a surge arrester operates to separate an electrical lead or ground lead wire from a damaged arrester and to interrupt the current flowing through the damaged arrester. The new fault disconnector includes an explosive charge, a tube of ablative material in a surrounding housing which co-acts with the tube to form a venting chamber, and a conductor extending through a portion of the chamber and through the tube. Excessive current heats and explodes the charge. The explosion pulls the conductor from an elongate connection, through the chamber portion and on through the tube; whereby arcing is first delayed, then is initiated in the chamber and then is drawn into and extinguished within the tube.