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. 26, 1985
Filed:
Apr. 26, 1984
Applicant:
Inventor:
Hiroshi Kamaike, Inazawa, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187 / ; 187 / ; 307 66 ; 320 22 ; 320 44 ; 318376 ; 318800 ;
Abstract
An apparatus for controlling an A.C. elevator comprising: A charging device, a discharging device, an inverter, current detecting means for detecting the current flowing between an A-C power supply and D-C batteries and through said charging and discharging devices, and a charging and discharging rate control circuit responsive to the output of said current detecting means for controlling the charging and discharging rates of said D-C batteries as the load conditions of the car of said elevator change so as to cause said charging and discharging of said batteries to be minimum so that the element of said batteries is not shortened.