Electric toothbrush with revolvable brush head

US6701565B2 · kind B2 · utility

Assignee

• WIK FAR EAST LTD. · CN

Inventor

• Klaus Hafemann · Essen, DE

Key dates

• Filing date: Apr 30, 2001
• Grant date: Mar 9, 2004
• Expiry date: Mar 19, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61C17/3463
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An electric toothbrush includes a handle, a brush head defining a brushing plane, and a guide arrangement supported by the handle and, in turn, supporting the brush head to undergo movement along an endless path of revolution having an axis extending substantially parallel to the brushing plane such that the brushing plane is maintained in the same orientation relative to a surface of a set of teeth throughout movement of the brush head along the endless path of revolution.