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. 21, 1995
Filed:
Jul. 14, 1994
Jing-Yih Cherng, Eagan, MN (US);
James K Klang, Rosemount, MN (US);
GNB Battery Technologies Inc., Mendota Heights, MN (US);
Abstract
A method and apparatus is disclosed for charging lead-acid batteries which comprises periodic voltage sweeps to determine the charging voltage that should be used for the battery and then adjusting the charging voltage in accordance with that voltage sweep information so as to ensure that a highly efficient charging process is achieved which avoids undue gassing and inherently compensates for factors such as the temperature, type and service life history of the battery and resistance due to the interactive nature of the technique and apparatus. One suitable technique for analysis and adjustment of the voltage sweep data involves analyzing the slope of the current versus the voltage sweep curve so as to determine certain slope values or changes in values.