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. 05, 1977
Filed:
Apr. 25, 1975
William B Mason, Arlington, TX (US);
ECC Corporation, Euless, TX (US);
Abstract
A battery charging system includes a circuit for sequentially connecting each of a plurality of banks of batteries to a constant current generator for a first predetermined period of time, for example, one hour, and then disconnecting all banks for a second predetermined period of time, for example, fifteen days. A plurality of controlled switching devices are sequentially gated to connect sequentially the banks of batteries, each for the first predetermined period of time, between the output terminals of a constant current generator. For n battery loads, the controlled rectifiers are gated by n outputs of a counter/decoder circuit having n + 1 outputs. The counter/decoder circuit is operated by clock pulse signals supplied thereto by a counter/time base circuit. The n + 1th output of the counter/decoder circuit re-addresses the counter/time base circuit to change the duration of the clock signal output thereof to the second predetermined time after which the clock signal is returned to the first predetermined time to clock the counter/decoder through its first to its n + 1th output state.