Vibration-canceling secondary resonator for use in a personal care appliance
US9301822B2 · kind B2 · utility
7Cited by
10References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2007 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | May 26, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F7/104
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The personal care appliance (10) comprises a handle/housing (20), a workpiece assembly (12), a motor assembly (18) which is mounted to the handle for driving the workpiece assembly and a secondary resonator (30) connected to the motor assembly or the handle, the secondary resonator comprising a spring mass assembly characterized in that at resonant operation thereof, vibrations produced by action of the motor assembly which would otherwise be transmitted to the handle, are significantly reduced/cancelled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.