Replaceable head electric toothbrush and connection structure therefor

US6836917B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Lawrence A. Blaustein · Moreland Hills, US
• John Osher · Moreland Hills, US
• Douglas A. Gall · Strongsville, US
• John Geoffrey Chan · Loveland, US
• K. Chan · Sha Tin, CN
• Ping Wang

Key dates

• Filing date: May 7, 2001
• Grant date: Jan 4, 2005
• Expiry date: Mar 27, 2022

Classification

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

Abstract

An electric toothbrush comprising an elongated body portion and a head including a static portion and a moving portion, a handle, and an angled shaft between the head and the handle. The portion of the toothbrush containing the head is detachably connected to the portion of the toothbrush containing the handle. A shaft within the head is selectively connectable to a mating shaft within the handle by a cooperating notch and peg assembly biased into a locking position by a spring member disposed to bias the head shaft into the desired position.