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:
Nov. 12, 1991
Filed:
Jun. 12, 1990
Yasuhiro Nagata, Inazawa, JP;
Toshiaki Kawahara, Tokyo, JP;
Abstract
An elevator monitor apparatus comprises an elevator control device for controlling the driving of an elevator, an individual control device for controlling the status of elevators building by building, a central monitor device for centrally monitoring the status of the elevator in a plurality of buildings. There is also provided a job start signal generation device for generating a job starting signal when an elevator maintenance and check-up job is started, a job completion signal generation device for generating a job completion signal when an elevator maintenance and check-up job is finished, and a communication control device for communicating with the elevator control device according to an instruction from the individual control device and for outputting an abnormality signal to the central monitor device when a job completion signal from the job completion signal generation device is not detected before a predetermined time has elapsed.