Dry shavers
US4575941A · kind A · utility
2Cited by
15References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1985 |
| Grant date | Mar 18, 1986 |
| Priority date | — |
| Expiry date | Jan 14, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B19/044
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An inner cutter for a dry shaver is formed from a tube of hardenable steel which is slotted transversely to form a series of bridge members on which individual teeth are formed by shallow annular grooves which locally reduce the thickness of the bridge members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.