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:
Mar. 07, 2000
Filed:
Nov. 13, 1997
Masashi Sugihara, Tokai-mura, JP;
Masayuki Fukai, Hitachi, JP;
Akio Ito, Hitachi, JP;
Katsuhito Shimizu, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A communication module of a controller for outputting a command relating to an operation and a monitor for auxiliaries to be operated and a communication module of a switch gear for generating information relating to a protection and an interlock for the auxiliaries to be operated are connected through a serial transmission cable wires. Each of the switch gears is connected each other through a serial transmission cable wires. By controlling a CPU in the switch gear, an activation of the auxiliaries to be protected which are connected to a power circuit is commanded and then the protection operation and the interlock operation for the auxiliaries to be operated are carried out. A small scale of the apparatus can be attained and the wiring cables can be lessened.