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:
Jun. 12, 2012
Filed:
Aug. 08, 2007
Ingo Vetter, Bad Camberg, DE;
Ingo Vetter, Bad Camberg, DE;
Braun GmbH, Kronberg, DE;
Abstract
In one aspect, a handheld electric appliance includes: an oscillating electric motor or linear motor controlled by control circuitry; a battery connected to the oscillating electric or linear motor; and charge detection circuitry configured to determine a charging state of the battery. The charge detection circuitry is coupled to the control circuitry such that, in response to the charge detection circuitry determining that the charging state of the battery reaches a predetermined threshold, the control circuitry activates the oscillating electric motor or linear motor to cause noise generated by the motor to perceptibly change to indicate a threshold charging state.