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:
Feb. 21, 1989
Filed:
May. 14, 1987
Radhakrishnan Ranjan, Hickory, NC (US);
William E Lazenby, Statesville, NC (US);
General Electric Corporation, King of Prussia, PA (US);
Abstract
An apparatus for preventing operation of a full range chemically augmented electrical fuse due to induced current surges includes a low inductance device electrically connected in series between an air gap device and a first terminal of a trigger circuit for triggering exothermic material within the fuse. A second air gap device is electrically connected in series with a second low inductance device. This series connection of the second air gap device and the second low inductance device is electrically connected in parallel with a high inductance device, the parallel connected combination being connected in series with a second terminal of the trigger circuit. All of these elements are electrically connected in parallel with the main fuse element which is electrically connected in series with the protected electrical power distribution system.