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.:

US 8830025 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 09, 2014

Filed:

Jun. 01, 2010
Applicants:

Masaaki Nakano, Kounosu, JP;

Kentaro Toyama, Saitama, JP;

Makoto Osawa, Otawara, JP;

Inventors:

Masaaki Nakano, Kounosu, JP;

Kentaro Toyama, Saitama, JP;

Makoto Osawa, Otawara, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 37/04 (2006.01); H01H 71/08 (2006.01); H01H 73/20 (2006.01); H01H 71/16 (2006.01); H01H 9/52 (2006.01);
U.S. Cl.
CPC ...
H01H 71/08 (2013.01); H01H 71/16 (2013.01); H01H 9/52 (2013.01); H01H 73/20 (2013.01);
Abstract

A circuit breaker can minimize a change in a structure of a case when a material forming a stud is changed. A stud includes a base portion provided in the case and a protruding portion protruding from the case. A cross-sectional area of the protruding portion is more than that of the base portion; thereby a thermal conductivity of the protruding portion increases and the thermal conductivity from the protruding portion to an external conductor connected to the stud increases. In addition, since a surface area of the protruding portion increases, an amount of heat dissipated from the protruding portion increases. In the invention, since dimensions of the base portion inserted into a stud insertion hole of the case are not changed, it is not necessary to change the dimensions of the insertion hole of the case.


Find Patent Forward Citations

Nakano, Masaaki. (2014). Circuit breaker (U.S. Patent No. 8830025). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8830025

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