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:
Jun. 22, 1976
Filed:
Aug. 30, 1974
Shizuo Sumida, Hiroshima, JA;
Kazuo Nii, Hiroshima, JA;
Osamu Shimizu, Himeji, JA;
Atsushi Ueda, Himeji, JA;
Mitsuaki Ishii, Himeji, JA;
Mitsubishi Denki Kabushiki Kaisha, BOTH OF, JA;
Toyo Kogyo Co., Ltd., BOTH OF, JA;
Abstract
An electrical device control system comprising: a plurality of signal sources; a plurality of electrical loads; a central operation apparatus; a plurality of terminal operation apparatus connected to the plurality of electrical loads and having means to detect the operation and a fault of the signal source and a fault of the electrical load and to generate a time division signal thereof; a multiple signal transmission line connecting the plurality of terminal operation apparatus to the central operation apparatus to transmit the time division signal to the central operation apparatus; the central operating apparatus having means to generate an activating signal for transmission over the multiple signal transmission line to the terminal station apparatus to operate an electrical load in response to the detection of the time division signal.