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:
Apr. 19, 1994
Filed:
Sep. 28, 1992
Applicant:
Inventor:
Jing-Yih Cherng, Eagan, MN (US);
Assignee:
GNB Battery Technologies Inc., Mendota Heights, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 91 ; 429228 ;
Abstract
A lead-acid battery with a charge capacity indicator comprises a sensor that includes a reversible electrode, such as PbO.sub.2, as a reference electrode that does not participate in the battery charge and discharge reactions, and the voltage is measured between the reference electrode and the negative plates, for example, by using the negative terminal.