Hygienic electric toothbrush
First Claim
Patent Images
1. A bristle head for a toothbrush, comprising:
- a casing, a drive shaft within the casing, a flexible membrane mounted to or formed integrally with the casing, a plurality of bristle tufts extending from the flexible membrane, and transmission means for transmitting movement of the drive shaft to said bristle tufts whereupon the flexible membrane flexes as the bristle tufts move.
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Accused Products
Abstract
A bristle head for an electric toothbrush has a casing, a drive shaft within the casing and a flexible membrane mounted to or formed integrally with the casing. A number of bristle tufts extend from the flexible membrane and roots of each tuft extend into the casing. A transmission is provided for transmitting movement of the drive shaft to the roots of the bristle tufts whereupon the flexible membrane flexes as or the bristle tufts move. The design prevents toothpaste and other liquid from entering into the casing where it might wear moving parts and harbour bacteria.
35 Citations
9 Claims
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1. A bristle head for a toothbrush, comprising:
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a casing, a drive shaft within the casing, a flexible membrane mounted to or formed integrally with the casing, a plurality of bristle tufts extending from the flexible membrane, and transmission means for transmitting movement of the drive shaft to said bristle tufts whereupon the flexible membrane flexes as the bristle tufts move. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification