Cutter assembly and method of producing same
AssigneeThe Gillete Company
InventorsRichard John Pretlove, Trevor John Crichton
Life of this patent
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Abstract
A cutter assembly for a dry shaver, comprising an elongate carrier member (221); and a cutter element (1210) having a plurality of turns forming a helix, each having an arcuate cutting portion (1211) and an arcuate mounting portion following sequentially along the helix; said carrier member being disposed substantially parallel to the axis (D-D) of said cutter element; and said carrier member contacting and supporting the mounting portions of the turns and leaving the cutting portions as free-span arches.
Claims19
A cutter assembly for a dry shaver, comprising:
- an elongate carrier member (221);
- and
- a cutter element (1210) having a plurality of turns forming a helix, each having an arcuate cutting portion (225) and an arcuate mounting portion (226) following sequentially along the helix;
- said carrier member (221) being disposed substantially parallel to the axis of said cutter element;
- and
- said carrier member (221) contacting and supporting the mounting portions (225) of the turns and leaving the cutting portions (225) as free-span arches.
A method of producing a cutter assembly for a dry shaver, comprising the steps of:
- producing an elongate carrier member (221);
- producing a cutter element (1210) having a plurality of turns forming a helix, each having an arcuate cutting portion (225) and an arcuate mounting portion (226) following sequentially along the helix;
- and
- securing the mounting portions of each of said plurality of turns to said carrier member (221) so that the carrier member (221) contacts and supports the mounting portions (225) of the turns and leaves the cutting portions (225) as free-span arches.
A method of producing a cutter for a dry shaver comprising the steps of:
- providing a helical element (1210) having a cross section such that by machining an external surface thereof a sharp edge is formed on at least one edge thereof;
- fixing said helical element around an elongate support (221);
- and
- removing said external surface of said helical element (1210) so as to form said sharp edge on at least one edge thereof.
A method of producing a cutter for a dry shaver, comprising the steps of;
- providing a helical element (1210) having an inner diameter having a first dimension;
- forming arcuate cutting portions on successive turns of said helical element;
- providing an elongate carrier member (221) having a thickness, as seen in a direction transverse to its longitudinal extent, of a second dimension, said second dimension being less than said first dimension of the helical element;
- contacting the helical element with a lower surface of the carrier member (221);
- and
- extending the arcuate cutting portions transversely across the carrier member in spaced relation thereabove.
Dependencies are inferred from the claim text.