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. 10, 2000
Filed:
Mar. 10, 1998
Kiyoshi Mizushima, Ishikawa, JP;
Mamoru Mouri, Ishikawa, JP;
Motoharu Miyakoshi, Ishikawa, JP;
Satoshi Nakamura, Ishikawa, JP;
Hiroshi Sato, Saitama, JP;
Shinzo Tsuji, Saitama, JP;
Masashi Watanabe, Saitama, JP;
Eiji Arai, Saitama, JP;
Nikko Company, Ishikawa, JP;
Nichiyu Giken Kogyo Co., Ltd., Saitama, JP;
Abstract
The exothermic instrument for firing an explosive comprises a circuit board 1 having a heat resist layer 6 on a substrate 11 and an exothermic resistance 4, which connects to a pair of through hole conductive electrodes 13 passing through the substrate 11, contacting with the explosive 19 on the heat resist layer 6, a pair of electrode pins 8, each one thereof is inserted into each one of the through hole conductive electrodes, and an insulator for holding the circuit board 1 through which the electrode pins 8 pass.