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:
Mar. 11, 2003
Filed:
May. 04, 2000
Frank Wohlrabe, Kronberg, DE;
Braun GmbH, , DE;
Abstract
A supplementary device, such as a charging, cleaning and/or diagnosis device, for a small electric device, such as an electric hair cutting or hair removal apparatus or an electric toothbrush, but particularly for an electric shaving apparatus, includes an arrangement to detect whether it is connected electrically and/or magnetically to the small electric device, and an arrangement to discriminate between different types of small electric device. This arrangement monitors an electric and/or magnetic quantity prevailing at the connection of the supplementary device. A method for detecting the presence of an electric and/or magnetic connection between said devices includes monitoring an electric and/or magnetic quantity prevailing at the connection of the supplementary device.