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:
Feb. 16, 1982
Filed:
Sep. 05, 1980
Applicant:
Inventor:
Philip F Locke, Jr, Trafford, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ; H02J / ;
U.S. Cl.
CPC ...
320 48 ; 320 35 ; 307 66 ; 340636 ;
Abstract
A battery charging circuit for continuously charging a back-up battery is disclosed. A switch conducts a charging current to the battery in response to a temperature variable resistor. The charging current is a function of both the temperature and the battery voltage such that the charging current is matched to the charging characteristics of the battery. Additional features include the establishment of a minimum charging current and the capability of testing the battery under load conditions.