Training appliance for tooth brushing

Details Training appliance for tooth brushing Training appliance for tooth brushing

1979-05-29

1981-03-03

Chin, Peter

Brushing, scrubbing, and general cleaning

Implements

Brush or broom

434263, A46B 1500

Patent

active

042532124

ABSTRACT:
A sound emitting device and/or a light emitting device actuated by brushing movement are provided in the stem of a tooth brush. These devices sense the reciprocating motion and the rotational motion of the brush, and the pressure applied on brushing.
The sound emitting device comprises a hollow cylindrical body connected to the stem of the brush and a ball like or columnar movable piece accomodated in the hollow cylindrical body, wherein the movable piece is moved by the motion of the brush in the direction of the axis of the brush so as to hit the end of the inner surface of the hollow cylindrical body for emitting sound. Alternatively, an electrode is provided on the inner wall of the hollow cylindrical body and an electro-conductive movable piece contacts the electrode to form an electrical circuit for emitting sound. For the rotation of the axis of the tooth brush, the movable piece contacts the electrode and a sound is emitted. Instead of the sound emitting device or simultaneously with it, the light emitting device may be operated. To sense a pressure during the tooth brushing an electrical conductive electrode is buried in the stem of the tooth brush or a sensor composed of a pressure sensing element and the like may be buried in the stem.

REFERENCES:
patent: 2877477 (1959-03-01), Levin
patent: 3261978 (1966-07-01), Brenman
patent: 4163300 (1979-08-01), Quint

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