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:
Jul. 05, 1988
Filed:
Apr. 14, 1986
Applicant:
Inventor:
Shigehiko Suzuki, Inazawa, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187129 ; 187134 ;
Abstract
A control apparatus for an elevator comprises a position detector responsive to cage movement, a non-volatile semiconductor memory for storing representation of cage position, and a microcomputer operated under program control for controlling the position detector to produce signals representing instantaneous cage positions and for continuously erasing and rewriting the contents of the non-volatile semiconductor memory based on the position detector signals. Thus, the stored contents can be reliably held even at the time of power failure, so that an expensive backup power source can be dispensed with.