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:
May. 23, 1995
Filed:
Aug. 26, 1992
Applicant:
Inventors:
Martin Alpert, Cleveland, OH (US);
David F Wissel, Lebanon, OH (US);
Assignee:
Tele Digital Development, Inc., St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320 14 ; 307 66 ;
Abstract
A switching circuit, comprising a first input for receiving power from an external power supply; a second input for receiving power for rapid charging a battery; means for selectively coupling to a power output for driving a device at least one of such power from the external power supply and power from the battery; and means for coupling such power for rapid charging a battery to the battery at the same time such power from the external power supply is coupled to the power output.