Patent ID: 7434286
Filing Date: 2008-10-14
Classification: A61C

Abstract:
1. A powered toothbrush comprising: a handle portion having a base member at one end thereof, a front face and a rear face; a neck portion extending from the other end of said handle portion with a head coupled to the neck portion and having a front face aligned with the front face of the handle portion and a rear face aligned with the rear face of the handle portion, the head including at least one bristle carrier connected to a drive shaft for moving the at least one bristle carrier in a first rotational direction, bristles of the bristle carrier extending outwardly from the front face of the neck portion; and wherein a longitudinal axis is coaxial with said handle and neck portions at all times during powered use and said handle portion is asymmetrical about said longitudinal axis with the majority of the handle portion extending in the direction of said rear face of the handle portion when viewing the powered toothbrush from the side, and said base member of said handle portion is substantially flat throughout; each of said base member and said handle portion have a width, measured along the front face of the handle portion, which intersects said longitudinal axis and is parallel to said bristle carrier and wherein the width of said handle portion, measured along the front face of the handle portion, varies along the length of the handle portion and wherein the width of said base member is less than the greatest width of said handle portion, and wherein the width of the base member is approximately 20 to 50 mm and the greatest width of the handle portion is approximately 25 to 60 mm; each of said base member and said handle portion have a depth, measured from the front face to the rear face of the handle portion, which intersects said longitudinal axis and is perpendicular to said bristle carrier and wherein the depth of said base member is less than the greatest depth of said handle portion, the depth of the handle portion from the longitudinal axis to the rear face of the handle portion is greater than the depth of the handle portion from the longitudinal axis to the front face of the handle portion, and the depth of the base member is approximately 20 to 50 mm and the greatest depth of the handle portion is approximately 25 to 60 mm; and said neck portion has a height dimension measured along the longitudinal axis that is greater than a height dimension of the handle portion measured along the longitudinal axis, the height dimension of the neck portion is approximately 50 to 110 mm and the height dimension of the handle portion is approximately 30 to 100 mm.