Patent ID: 8250694
Filing Date: 2012-08-28
Classification: A46B,A61C

Abstract:
1. A powered toothbrush comprising: a handle; a head mounted to one end of said handle, said head having an exposed outer surface and defining a longitudinal axis; a first tuft block mounted to said head, said first tuft block having bristles extending outwardly from said outer surface; a second tuft block mounted to said head, said second tuft block having bristles extending outwardly from said outer surface; a drive structure for oscillating each of said first and said second tuft blocks in counter rotational direction within a plane generally parallel to said outer surface; and a third tuft block having bristles extending outwardly from said outer surface, said third tuft block being mounted to said head separate from said first and second tuft blocks and located substantially between said handle and said first and second tuft blocks without being rotationally movable in a plane generally parallel to said exposed surface; wherein said third tuft block is movably mounted on said head and is movable in a longitudinal direction in a plane generally parallel to said outer surface; and wherein said bristles of said first tuft block and said bristles of said second tuft block define a pair of concentric circles of bristles that form a cup-like structure that includes an outer circle of bristles rotatable in a first direction and an inner circle of bristles rotatable in an opposing second direction.