Motor-driven toothbrush
US5033150A · kind A · utility
106Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1990 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Jan 29, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C15/047
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A motor-driven toothbrush includes a housing adapted to be gripped by the user and containing an electrical rotary motor, and a toothbrush coupled to the rotary motor by an eccentric coupling such that rotation of the motor causes the toothbrush to oscillate. A sleeve threadedly received in the end of the housing through which the toothbrush handle passes defines a pivot point for the oscillations of the handle, and is adjustable with respect to the housing so as to permit varying the location of the pivot point, and thereby the type of oscillations produced by the rotary motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.