Complex motion toothbrush

An electrically driven toothbrush has a rotatable shaft with a cam preferably at a remote end of the shaft, which fits into a slot in a bristle holder. The holder is mounted for rotation in a toothbrush head. When the shaft rotates cam describes a circle and drivingly engages the slot to cause the h...

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Bibliographic Details
Main Authors GALL DOUGLAS A, BLAUSTEIN LAWRENCE A, BROWN PATRICK W
Format Patent
LanguageEnglish
Published 17.05.2005
Edition7
Subjects
APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
DENTISTRY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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Summary:An electrically driven toothbrush has a rotatable shaft with a cam preferably at a remote end of the shaft, which fits into a slot in a bristle holder. The holder is mounted for rotation in a toothbrush head. When the shaft rotates cam describes a circle and drivingly engages the slot to cause the holder to vibrate in a first brushing motion. A second bristle holder is also driven by the shaft, for a second kind of brushing motion. The second bristle holder is driven through and engagement with a portion of the remote end and/or with one or more additional cams or cam portions included on the shaft.
Bibliography:Application Number: US20030367373