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:
Oct. 02, 2001
Filed:
Dec. 29, 1998
Masahiro Kume, Nagoya, JP;
Motonori Kido, Nagoya, JP;
Yoshiyuki Miyazaki, Nagoya, JP;
Hideaki Toyama, Nagoya, JP;
Akio Matsumaru, Nagoya, JP;
Jun Yasukuni, Yokkaichi, JP;
Kenjiro Nishida, Himeji, JP;
Junya Amano, Himeji, JP;
Ayumu Kimura, Himeji, JP;
Hiroshi Hori, Himeji, JP;
Mitsuru Tanigawa, Yokkaichi, JP;
Other;
Abstract
A circuit breaker includes, a cylindrical portion having a gunpowder and a exploding unit for exploding the gunpowder by application of electric power to the gunpowder, the cylindrical portion being provided with an opening at at least one end; a base material securing the cylindrical portion, at least the surface of which is made of insulating material; a conductor fixed to the base material and having a break portion located at a position opposite to the opening of the cylindrical portion, the break portion being broken by explosive force of the gunpowder; a first metallic cover portion covering the cylindrical portion and the break portion; and a second metallic cover portion covering the base material from an opposite side to the cylindrical portion, wherein the first and second cover portions are fixed to the base material by directly connecting the first and second cover portions each other.