Invention Grant
US07954192B2 Powered toothbrush with rotating sections 有权
动力牙刷带旋转部分

Powered toothbrush with rotating sections
Abstract:
The head of a toothbrush includes a first tuft block having bristles and a second tuft block having bristles. The first and second tuft blocks are mounted for counter-rotational or counter-rotational oscillating movement in a direction parallel to the outer surface of the head. The toothbrush head also includes a third section having bristles extending outwardly from the head to provide an extended field of bristles to support an elongated ribbon of toothpaste and for enhanced cleaning.
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