Dry shaver with differentially biased inner cutter and base members
US4292737A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1979 |
| Grant date | Oct 6, 1981 |
| Priority date | — |
| Expiry date | Dec 3, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B19/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A dry shaver has a reciprocating inner cutter (9) co-operating with an arched flexible foil (8) of which the foil is fastened at its edges to a base member (7) and the inner cutter is pressed against the foil by springs which act between the inner cutter and the base member. The above mentioned parts form a cutting unit which is detachably mounted on the casing through the intermediary of spring loaded retainers (18) which permit movement of the cutting unit towards and away from the casing. The resilient force applied through the retainer is substantially less than that of the springs acting on the inner cutter, so as to permit displacement of the cutting unit under the forces encountered during shaving without deflection of the inner cutter springs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.