Open cutter for a foil type shaver and method for fabricating the open cutter

A method for fabricating an open cutter for a foil type shaver comprising the steps of:

• (a) stamping a metal plate to form thereon alternating parallel slots and cutting strips, each cutting strip having two opposite sides and a top surface;
• (b) shearing the stamped metal plate to form a plurality of protruding cutting edges along the two opposite sides of the cutting strips and spaced apart from each other, each protruding cutting edge being defined by an extension of the top surface of the cutting strip and a bottom surface inclined at a first acute angle with respect to the extension of the top surface;
• and a plurality of recessed cutting edges defined by the plurality of protruding cutting edges, each recessed cutting edge being defined by the top surface of the cutting strip and the side of the cutting strip inclined at a second acute angle with respect to the top surface;
• and
• (c) forming the cutter having a plurality of arch-shaped cutting strips by bending the stamped and sheared metal plate into an arch shape.

A foil type shaver comprising:

• (a) an arcuate foil;
• (b) an open cutter slidably coupled underneath the arcuate foil;
• (c) the open cutter comprising a plurality of arch-shaped cutting strips formed by bending a metal plate formed with alternating parallel slots and cutting strips, each arch-shaped cutting strip having two opposite sides and a top surface in sliding contact with an underneath surface of the arcuate foil through which hair to be cut can pass;
• (d) a plurality of protruding cutting edges formed along the two opposite sides of the arch-shaped cutting strips and spaced apart from each other, each protruding cutting edge being defined by an extension of the top surface of the cutting strip and a bottom surface inclined at a first acute angle with respect to the extension of the top surface;
• and
• (e) a plurality of recessed cutting edges defined by the plurality of protruding cutting edges, each recessed cutting edge being defined by the top surface of the cutting strip and the side of the cutting strip inclined at a second acute angle with respect to the top surface;
• (f) wherein the protruding cutting edges of one cutting strip are facing the recessed cutting edges of an adjacent cutting strip, thereby generating continuous hair-lifting and hair-cutting actions as the open cutter is driven in oscillating directions by a motor.