Patent ID: 10485330

Abstract:
A self-righting toothbrush includes a shaft having a head section, a medial section and a tail section. The medial section has curved pivot surface configured to contact a horizontal support surface at a pivot point, the pivot surface allowing the toothbrush to roll on the support surface. The pivot surface is provided in part by protrusions, including a reference protrusion, formed on different sides of the shaft that are visually distinct from each other in all viewing orientations of the toothbrush. The toothbrush will be in a stable orientation with the toothbrush bristles extending in a vertical direction when the toothbrush is disposed with the reference protrusion contacting the support surface. The toothbrush will be in an unstable position and susceptible to rolling to said stable orientation when the toothbrush is in a non-bristles down or non-bristles up position with the bristles extending in a non-vertical direction.