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. 12, 1991
Filed:
Jun. 13, 1989
Shigehiko Suzuki, Inazawa, JP;
Abstract
A method of and apparatus for controlling operation of an elevator at the occurrence of an earthquake. Estimated seismic intensity data is collected from a plurality of sources at different locations within a geographic region and transferred to an administration section; the geographic region is divided into zones of different seismic intensity based upon the transferred data; seismic intensity at the location of the elevator is assumed upon the occurrence of an earthquake on the basis of location of the elevator in the zones; whether the operation of the elevator is to be permitted is judged according to the assumed seismic intensity; and a trial run is commanded upon a judgement that operation is permitted, whereupon normal elevator operation is restored when the absence of any abnormality has been acknowledged upon travel during the trial run.