U.S. Philips Corporation

Koninklijke Philips Corporation N.V.

Foppe Kramer

Maarten Brussee

Johan Pragt

Hermanus S J Altena

Fokke Roelof Voorhorst

Jasper Zuidervaart

Robert H Munnig Schmidt

Arjan Sander Vonk

Robert Alexander Santhagens Van Eibergen

Jan Spoelstra

Franciscus M Van Roemburg

Martijn Adriaan De Keijzer

Anton M Boorsma

Gerhard R Foerster

Hermanus S Altena

A hair removing apparatus ( ) comprising two co-operating hair processing members ( ), formed by plate-shaped carriers and movable relatively to each other in a direction of movement (X). The two carriers are positioned with respect to each other, viewed in a Z direction substantially perpendicular to the carriers, by a plurality of positioning members ( ), which are spaced apart in the direction of movement. At least one of the two carriers has a comparatively low bending stiffness. As a result, a comparatively small and uniform gap is present between the two carriers, and the friction force acting on the carriers in a direction parallel to the direction of movement is also comparatively small. In one embodiment the positioning members ( ) each have an S-shaped or C-shaped tongue ( ), which is provided on a third carrier ( ), the first and second carriers ( ) being enclosed between the third carrier and contact elements ( ) of the tongues.

Hair removing apparatus comprising plate-shaped carriers which care positioned and movable with respect to each other

The invention relates to a method of manufacturing a cutting member (,). According to the method, a single side,of a carrier,of the cutting member is provided with an auxiliary layer (,). The carrier is provided with a cutting edge (,) by means of an electrochemical machining device (,), an electrode (,) of the electrochemical machining device being arranged on a side (,) of the carrier remote from the auxiliary layer. According to the invention, the auxiliary layer is provided as far as the cutting edge to be provided on the carrier, and, after the cutting edge has been provided on the carrier, the auxiliary layer is maintained on the carrier as a layer which is functional for the cutting member. In this manner, the auxiliary layer has a double function and is thus utilized in a better way. In a preferred embodiment, the auxiliary layer mainly comprises SiO,and has a thickness below 200 nm, preferably below 100 nm. In this embodiment, an edge (,) of the auxiliary layer, which is present at the location of the cutting edge of the carrier, constitutes an auxiliary cutting edge or even a main cutting edge of the cutting member, so that the cutting member has improved cutting properties and an improved service life. The cutting member is used in a shaving head (,) according to the invention and in a shaving device (,) according to the invention, which shaving device comprises a shaving head. The shaving head further comprises a manipulator (,) which is arranged near the cutting edge of the cutting member for moving hairs (,) along the cutting edge during cutting. In this manner, the auxiliary layer of the cutting member also is a protective layer protecting against wear, corrosion and providing mechanical resistance.

Method of manufacturing a cutting member having an auxiliary layer

In a method for electrochemical machining, the working distance is set by contacting the workpiece with the electrode, increasing the distance between the workpiece and the electrode by a first distance, detecting whether the contact between the electrode and the workpiece is broken, and further increasing the distance between the workpiece and the electrode by a second distance. Owing to this method, very small working distances can be set with a limited risk of short-circuiting and flash-over.

Method and arrangement for the electrochemical machining of a workpiece

The invention relates to a method of forming one or more through-holes in a metal workpiece, such as shaving foils or shaving combs, by means of an electrochemical machining apparatus (ECM apparatus). To this end, the method is characterized in that, during machining, the workpiece is provided on a substrate of an electroconductive, electrochemically inert material, such as a noble metal (alloy), in particular a noble metal (alloy) which is predominantly composed of Pt. Preferably, the workpiece is clamped onto the substrate. By virtue of said measures, rounding of the edges between the holes formed and the surface of the workpiece, which is clamped down on the substrate during machining, is reduced substantially. This has a favorable effect on the formation of sharp cutting faces.

Method of electrochemically machining workpieces

A depilator is provided comprising a housing which includes a skin-following surface for the skin to be depilated and at least one drivable hair pulling element rotatably mounted in the housing, the axis of the element being directed perpendicular to the skin-following surface. A first hair pulling element is arranged annularly while a second hair pulling element adjoins the inside wall of the first hair pulling element.

Depilator

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Drachten, Netherlands

Foppe Kramer