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:
Oct. 16, 2012
Filed:
Dec. 14, 2006
Kevin A. Miller, Bellevue, WA (US);
Ari Lumbantobing, Issaquah, WA (US);
Meindert Lambertus Norg, Canonsburg, PA (US);
Kevin A. Miller, Bellevue, WA (US);
Ari Lumbantobing, Issaquah, WA (US);
Meindert Lambertus Norg, Canonsburg, PA (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
An adaptive system for a personal care appliance, such as a power toothbrush, having a workpiece which is driven through an amplitude of motion by a drive mechanism which includes a stator member includes a circuit () for measuring average electrical current through the stator member and stored information () in the personal care appliance which relates the average current values through the stator during operation of the device to corresponding amplitude of motion of the workpiece. A processor () utilizing a stored program adjusts the operating frequency to produce a stator current value which correlates to the desired amplitude of motion of the workpiece.