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Electric toothbrush

An electric toothbrush and sports technology, applied in the direction of brushes, brush bodies, dentistry, etc., can solve problems such as hindering tooth brushing, vibration and discomfort, and achieve the effect of simplifying the mechanism

Inactive Publication Date: 2003-06-11
CHURCH & DWIGHT CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vibration is also very uncomfortable for hands and prevents sufficient brushing time

Method used

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  • Electric toothbrush
  • Electric toothbrush
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Examples

Experimental program
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Embodiment Construction

[0052] Detailed Description of Preferred Embodiments

[0053] Referring now to the drawings, which are shown to illustrate preferred embodiments of the invention and not to limit the invention, figure 1 An electric toothbrush A according to a first preferred embodiment of the present invention is shown. The electric toothbrush can be used for personal hygiene such as brushing teeth and gums.

[0054] Such as figure 1 As shown in , the electric toothbrush includes an elongated body portion 10 having a first end 12 and a second end 14 . A brush head 16 is attached to its first end 12 and a handle 18 is attached to its second end 14 .

[0055] The brush head 16 has a more traditional larger brush head shape which allows the user to brush their teeth in the standard up-and-down manner. Such as figure 2 As shown in , the length of the brush head 16, dimension "X", may range from about 0.75 inches to about 1.75 inches. The thickness of the brush head, dimension "Y", may range...

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PUM

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Abstract

An electric toothbrush comprising an elongated body portion and a head including a static portion and a circular portion, a handle, and an angled shaft between the head and the handle. The circular portion rotates or reciprocates about an axis normal to a longitudinal axis of the head. The circular portion includes stiff bristles and the static portion includes soft bristles. The elongated body portion is hollow and further includes a motor in the hollow portion, which is operatively connected to the circular portion for rotating or oscillating or reciprocating the circular portion. A battery is located within the hollow section for powering the motor. A switch is operatively connected to the motor to provide momentary and continuous operation of the toothbrush. A worm gear and a pair of step gears are located in the hollow portion. The motor is operatively connected to the worm gear and the step gears are operatively connected to the worm gear and to each other. One of the step gears is offset with respect to a longitudinal axis of the elongated body portion. A shaft which is operatively connected to the offset step gear and to a second end to the circular portion. Alternately, the toothbrush comprises a plurality of gears and swivel arms which move the brush head moving portion in a rotating, oscillating or reciprocating manner.

Description

Background of the invention [0001] This application is a continuation-in-part of Application Serial No. 09 / 236,794, filed January 25, 1999, which is a continuation-in-part of Application Serial No. 09 / 163,621, filed September 30,1998. [0002] The present invention generally relates to electric toothbrushes. More specifically, it relates to an improved battery powered toothbrush. [0003] The benefits of brushing teeth with a motorized toothbrush are well known, and the motorized movement of toothbrushes has been the subject of many new inventions and design activities. Furthermore, many different types of electric toothbrushes have been commercially marketed in recent years. However, a study of the prior art shows that there is a trend toward increasingly complex, expensive and non-commercially viable methods for achieving motorized movement of the toothbrush's bristles and head to help clean teeth more effectively. [0004] The business market has been divided into two pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A46B13/02A61C17/00A61C17/22A61C17/26A61C17/34
CPCA61C17/349A61C17/3436A61C17/26B29L2031/425A61C17/22A61C17/34A61C2204/002
Inventor 劳伦斯·A·布劳斯泰恩约翰·R·诺丁汉约翰·奥谢约翰·W·斯皮尔克
Owner CHURCH & DWIGHT CO INC