Multi-motion toothbrush

US7225494B2 · kind B2 · utility

Assignee

• Church & Dwight Co., Inc. · US

Inventors

• John Geoffrey Chan · Loveland, US
• Wang Ping · Shanghai, CN
• Lawrence A. Blaustein · Moreland Hills, US
• Douglas A. Gall · Strongsville, US
• Patrick W. Brown · Mantua, US

Key dates

• Filing date: Jul 30, 2002
• Grant date: Jun 5, 2007
• Expiry date: Mar 28, 2023

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61C17/34
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An electric toothbrush is provided. The electric toothbrush includes a handle having a motor disposed therein, a head having a longitudinal axis, and a neck disposed between the handle and the head. First and second bristle holders are associated with the head. The first bristle holder oscillates or rotates. The second bristle holder is reciprocates in generally the same direction as the longitudinal axis of the head but does not rotate or oscillate. The motor is operatively connected to the first and second bristle holders.