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:
Dec. 04, 2018
Filed:
Apr. 07, 2015
Applicant:
Dongguan Littelfuse Electronics Co., Ltd., Dongguan, Guangdong, CN;
Inventors:
Assignee:
Dongguan Littelfuse Electronics Co., Ltd., Dongguan, Guangdong, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C 7/10 (2006.01); H02H 3/02 (2006.01); H01C 1/08 (2006.01); H01C 1/14 (2006.01); H01C 7/12 (2006.01);
U.S. Cl.
CPC ...
H02H 3/025 (2013.01); H01C 1/08 (2013.01); H01C 1/14 (2013.01); H01C 7/12 (2013.01);
Abstract
A circuit protection device includes a metal oxide varistor (MOV), a spring terminal and a thermal disconnect coupling the spring terminal to the MOV. A gas discharge tube (GDT) is coupled to the MOV. The spring terminal is biased such that upon occurrence of an overvoltage condition, heat generated by the MOV melts the thermal disconnect and allows the spring terminal to be displaced away from the MOV, thereby creating an opening circuit.