| 摘要 |
A personal hygiene implement, such as a toothbrush, is constructed to have a self-righting tendency to elevate a portion of the implement to avoid contamination from a support surface upon which it rests. The implement includes a functional head and a handle having a curved outer surface. When placed upon a horizontal surface on the curved outer surface, the implement rolls under gravitational force to a stable position in which the head is not in contact with the horizontal surface. In some cases a ballast material offsets the gravitational center of the implement to increase the self-righting tendency. Barrel-shaped, bulb-shaped and cylindrical handles are disclosed, as is a method of use.
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