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:
Sep. 29, 2009
Filed:
Dec. 20, 2005
Joe Lambert, Raonoke, VA (US);
Brian N. Meyer, Salem, VA (US);
John S. Harrison, Roanoke, VA (US);
Sherrill Thomas, Chatham, VA (US);
Joe Lambert, Raonoke, VA (US);
Brian N. Meyer, Salem, VA (US);
John S. Harrison, Roanoke, VA (US);
Sherrill Thomas, Chatham, VA (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method for determining whether a battery is electrically and physically connected to a battery charger includes monitoring a battery charging voltage supplied by a battery charger that has superimposed a known signal on the battery charging voltage, and determining that the battery charger is connected when the known superimposed signal is present and that the battery charger is not connected when the known superimposed signal is absent.