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:
Jun. 09, 1992
Filed:
Jul. 15, 1991
Applicant:
Inventor:
Randy L McCullough, Charleston, WV (US);
Assignee:
Eagle Research Corporation, Scott Depot, WV (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320 16 ; 320-7 ; 307 71 ;
Abstract
An arrangement for automatically connecting a first battery either in series with or in parallel to a second battery in order to maintain a minimum output terminal voltage including a voltage sensor which detects when the operating voltage of the batteries falls below a first threshold. When this occurs, switching devices are activated to convert the parallel connection of batteries into a series connection, thereby doubling the operating voltage. When the battery voltage rises above a second threshold which is at least twice the first threshold, the switching means are activated to reconnect the batteries in parallel.