Patent · US Expired

Electric toothbrush

US6564940B2 · kind B2 · utility

65Cited by
100References
28Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 21, 2001
Grant dateMay 20, 2003
Priority date
Expiry dateMay 21, 2021

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29L2031/425
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

An electric toothbrush includes a head having a moving portion, a handle, and shaft between the head and the handle. A body portion is hollow and further includes a motor operative to generate motion for driving the moving portion. A battery is located within the hollow section for powering the motor. A first switch, operatively connected to the motor provides momentary operation of the toothbrush. Optionally, a second switch provides for continuous operation of the toothbrush. The first switch can be operated while the toothbrush is in a toothbrush package, such as, for example, a plastic blister pack. A consumer can momentarily observe the operation of the toothbrush before purchasing the toothbrush. The consumer cannot operate the second switch and is thereby prevented from leaving the toothbrush in a battery draining operational mode for extended periods of time.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.