U.S. Philips Corporation

Albert Hoekstra

Eppe Bakker

Eduard W Tietjens

Willem S Wijma

Dirk J Van Hemmen

A shaving apparatus comprises an external shaving member having hair-entry apertures and an internal shaving member which is drivable relative to the external shaving member and which comprises a carrier for at least one cutter, a portion of the cutter being disposed in a recess in the carrier. The cutter is supported by the carrier by means of three supporting projections which are not disposed in line.

Shaving apparatus

A dry-shaving apparatus comprises a housing; a longitudinally extending shear plate; a holder for the shear plate, the holder being removable from the housing; and a longitudinally extending cutter rotatable relative to the shear plate. The cutter includes a carrier having cutting elements movable in a substantially radial direction relative to the carrier. Each cutting element has a cutting edge at its radial end, such radial ends being in contact with the shear plate during only a part of a revolution of the cutter and being clear of other parts of the apparatus during another part of the cutter revolution. A guide wall provided on the housing adjoins the shear plate, the radial ends of the cutting elements also being in contact during a further part of the cutter revolution with such guide wall.

Dry-shaving apparatus

A dry-shaving apparatus comprises a housing having a holder for a shear plate with hair-entry apertures and a cutter which is rotatable about an axis of rotation and which comprises a carrier for cutting elements which are movable relative to the carrier, in which during rotation of the cutter, as part of a revolution, each point of a cutting edge at the end of a cutting element follows a constrained path which is defined by the shear plate and each point of a cutting edge follows a circular free path when the ends are clear of the shear plate. At the more advanced axial end of the first cutting element, viewed in the direction of rotation, the radius of a circular free path of the cutting edge is smaller than the distance from the axis of rotation to the corresponding portion of the shear plate at the location where at this end the free path changes into the constrained path, so that the cutter comes gradually into contact with the shear plate.

Dry-shaving apparatus with angled blades

There is provided a rotary shaving apparatus having a shear plate formed with hair-entrance apertures and a cutting member associated with and rotatable relative to the shear plate. The cutting member is substantially constituted by a central body provided with cutters extending only from its circumference. The cutters are arranged in a plurality of groups, the intervals between adjoining cutters of each group being equal, such intervals differing from the respective intervals between the two adjacent cutters of two different groups.

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Drachten, Netherlands

Albert Hoekstra