Electric appliances having electric motors for driving oscillatory elements
US7288863B2 · kind B2 · utility
29Cited by
12References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 9, 2006 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Jan 9, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/34
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
an electric appliance includes an electric motor having a first oscillatory element, a second oscillatory element and an electric coil configured to generate a magnetic field to drive the first and second oscillatory elements. The electric appliance also includes a movable component and a first spring element connecting the movable component to the first oscillatory element. Notably, the first oscillatory element and the second oscillatory element are arranged to drive each other in oscillatory motions of opposite phase in response to the magnetic field of the electric coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.