Razor having integral hair detection means
US5165170A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1991 |
| Grant date | Nov 24, 1992 |
| Priority date | — |
| Expiry date | Nov 6, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B21/40
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A razor having an integral hair detection means, the razor comprising a razor assembly mounted on a handle for brushing against a surface of a person's face and vibrating in response to contact with hairs thereon and a pickup coupled to the handle and responsive to vibrations produced therein for generating a corresponding signal. Electronic or acoustic audio frequency amplifying means are provided within the handle for amplifying the signal from the pickup as an audio frequency output. In use, the person shaving hears the amplified vibrations either directly via a loudspeaker or via an earpiece, so as to obtain feedback relating to the surface quality of the shave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.