Brush for an electrically powered toothbrush

US5467495A · kind A · utility

Assignee

• The Braun Corporation · DE

Inventors

• Bernhard Boland · Frankfurt, DE
• Peter Hilfinger · Bad Homburg vor der Höhe, DE

Key dates

• Filing date: Oct 11, 1994
• Grant date: Nov 21, 1995
• Expiry date: Oct 11, 2014

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A46B2200/1066
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention is directed to a brush for an electric toothbrush, comprising a cylindrical bristle supporting structure equipped with bristles arranged on several approximately concentric circular rings on the bristle supporting structure. A circular ring devoid of bristles is maintained between at least two adjacent bristled circular rings, with the average width of the bare circular ring corresponding approximately to the average width of a bristled circular ring. The brush is adapted to perform an oscillating movement vertically to the longitudinal axis of the toothbrush. As a special brush, it is particularly well suited to the cleaning of teeth of persons wearing orthodontic appliances.