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.:

US 6815931 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 09, 2004

Filed:

Jul. 29, 2002
Applicant:
Inventors:

John T. Wells, Brielle, NJ (US);

Chris Hanrahan, Point Pleasant Beach, NJ (US);

Ted McMahon, Port St. Lucie, FL (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 ;
U.S. Cl.
CPC ...
H02J 7/00 ;
Abstract

A battery charging system includes a first charge source for connection to a first engine and at least a second charge source for connection to at least a second engine. A first battery is connected to the first charge source. At least a second battery is connected to the second charge source. At least a third battery is provided and is connected to a load. A switch is adapted in the first mode of operation to connect the third battery to the first charge source, and in a second mode of operation to connect the third battery to the second charge source. In a third mode of operation, the switch can isolate the third battery from the first and second charge sources as a fail-safe, and provide an alarm of this status. The invention is particularly adapted for use in marine vessels to prevent start batteries from discharging to a point where the voltage is insufficient to start an engine. A switch assembly and a method according to the invention are also disclosed.


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