Patent attributes
A toothbrush device includes one electric motor that provides the toothbrush with various frequencies of pulsations that are transmitted in a controlled fashion. The toothbrush device has a brush head with bristle touch-points, a handle, and a carrying case that extends from the head to the handle and holds the electric motor (e.g., a vibration motor). The electric motor generates vibration energy that travels through a shaft of the carrying case to the brush head in generally a single direction to vibrate the brush head. For example, the carrying case of the electric motor contacts the handle at a contact point, which is approximately at the center of the carrying case such that the majority of the vibrations generated by the electric motor are transmitted toward the brush head, while the vibrations towards other directions are minimized.
