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.

Date of Patent:
Aug. 09, 2022

Filed:

Apr. 03, 2019
Applicant:

Nippon Telegraph and Telephone Corporation, Tokyo, JP;

Inventors:

Naomichi Nakamura, Musashino, JP;

Hidetoshi Takada, Musashino, JP;

Jun Kato, Musashino, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 85/143 (2006.01); H02H 7/00 (2006.01); H01H 85/02 (2006.01);
U.S. Cl.
CPC ...
H01H 85/143 (2013.01); H01H 85/0241 (2013.01); H02H 7/00 (2013.01);
Abstract

A fuse with a frequency separation function includes an input port portion, an output port portion, a first transmitting portion between the input port portion and the output port portion, the first transmitting portion configured to transmit a lightning surge current entering the input port portion and guide the lightning surge current to the output port portion, a second transmitting portion between the input port portion and the output port portion, the second transmitting portion configured to be capable of transmitting a normal current and an abnormal current entering the input port portion, and a melting mechanism portion which is provided between the second transmitting portion and the input port portion or between the second transmitting portion and the output port portion, the melting mechanism configured not to melt and break when the normal current passes, and configured to melt and break when the abnormal current passes.


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