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:
May. 10, 1994
Filed:
Jun. 11, 1992
Makio Kojima, Yokohama, JP;
Furukawa Denchi Kabushiki Kaisha, Yokohama, JP;
Abstract
A method for charging a storage battery includes providing an electric charger having a rapid charge voltage level and a trickle charge voltage level, a total-timer for measuring a total time which has elapsed since initiation of a charging operation, a peak-timer for measuring an amount of time which has elapsed since a peak voltage is reached during rapid charging of the storage battery, and an arithmetic circuit in the peak timer for determining a function of an elapsed time and a value of a charging rate. The arithmetic circuit of the peak-timer determines an elapsed time value of the peak-timer as a function of an elapsed time value of the total-timer and a value of a charging rate. The elapsed time value of the peak-timer is initially set at substantially the same time as an initial setting of a value of the total-timer. The peak-timer is started at a predetermined elapsed time after starting of a rapid charging operation.