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:
Apr. 27, 1976
Filed:
May. 21, 1974
Haruo Koyanagi, Musashimurayama, JA;
Iwao Sato, Komae, JA;
Buhei Yasuhara, Tokyo, JA;
Jiro Sakai, Tokyo, JA;
Nobuharu Yamauchi, Amagasaki, JA;
Masaji Matsumura, Amagasaki, JA;
Katsuhide Morimoto, Amagasaki, JA;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JA;
Nissan Motor Company Limited, BOTH OF, JA;
Abstract
A sequence control monitoring device is disclosed which receives from controlled-objects operated under a sequence control system signals independently representing the operating states of the individual controlled-objects. The monitoring device counts the time duration for which each input signal remains in its on or off state, compares the counted value with a preset value, and thus judges whether the operating state of the controlled-object is correct.