Piezoelectrically actuated shaver
US6158126A · kind A · utility
4Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1999 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Feb 17, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S30/01
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A small, lightweight, efficient, quiet electric shaver is provided in which one or more piezoelectric drivers are mechanically coupled to a cutting blade. The cutting action of the blade is generated by the piezoelectric drivers which, when electrically energized, oscillate at a predetermined frequency. The piezoelectric driver is electrically energized by a regenerative drive circuit. Hair shafts, which protrude from the surface to be shaved through a perforated foil member, are sheared at their base by the oscillating action of the blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.