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:
Aug. 18, 1992
Filed:
Nov. 19, 1990
Masamoto Mizuno, Inazawa, JP;
Terumi Hirabayashi, Inazawa, JP;
Masanori Tawada, Inazawa, JP;
Toshiyuki Kodera, Inazawa, JP;
Abstract
The elevator control apparatus of the present invention comprises a plurality of drive control apparatus that control the driving of various motions of the elevator, a signal mutual transmission device for connecting the plurality of the drive control apparatus and for transmitting signals among them, and a plurality of abnormality judgment devices, disposed on each of the plurality of the drive control apparatus, that monitor the motions of the elevator controlled by the plurality of the drive control apparatus by transmitting sigals among them via the signal mutual transmission device, each one of the plurality of the abnormality judgment devices individually judging the abnormality of the same motion.