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. 02, 2002
Filed:
Jan. 28, 2000
James L. Wener, Chicago, IL (US);
Anthony Kaplan, Chicago, IL (US);
Walter Raczynski, Arlington Heights, IL (US);
CMG Equipment, LLC, Chicago, IL (US);
Abstract
A light, such as a miniature flashlight, includes a housing adapted to hold a battery, a voltage step-up circuit disposed so as to come into electrical contact with the battery when the battery is placed in the housing and an illumination device, such as a light emitting diode (LED), electrically connected to the voltage step-up circuit. The voltage step-up circuit increases the voltage provided by the battery to drive the LED, to thereby enable the flashlight to use a power source, such as a single standard AA battery, which provides a DC voltage below the turn-on threshold voltage of the LED.