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. 28, 2018
Filed:
Oct. 26, 2012
Dongguan Littelfuse Electronics Co., Ltd., Dongguan, CN;
Wen Yang, Dongguan, CN;
Hailang Tang, Dongguan, CN;
Huawei Yin, Dongguan, CN;
Stephen J. Whitney, Lake Zurich, IL (US);
G. Todd Dietsch, Park Ridge, IL (US);
DONGGUAN LITTELFUSE ELECTRONICS CO., LTD., Dongguan, unknown;
Abstract
A circuit protection device including a housing () defining a chamber () and a metal oxide varistor (MOV) stack () disposed within the chamber (). A first spring () is electrically attached at a first end to a first input terminal () of the MOV stack () by a solder connection () and at a second end to a first input line (). The first spring () is biased away from the first input terminal (). A second spring () is electrically attached to a second input terminal () of the MOV stack () by a solder connection () and at a second end to a second input line (). The second conductive spring () is biased away from the second input terminal (). When an overvoltage condition occurs, heat generated by the MOV stack () melts at least one of the first or second solder connections () to allow the corresponding springs to be displaced away from the respective MOV stack () input terminals (), thereby creating an opening circuit.