US 10,695,924 B2 · Shaving apparatus

Abstract

A shaving apparatus (1000) includes a rotary cutter (220) comprising a cutter tube, the rotary cutter comprising a plurality of closed-geometry apertures (221) in an outer surface of the cutter tube, each of the closed-geometry apertures extending along an aperture axis and comprising: a cutting edge (222); a first section having a first width measured transverse to the aperture axis; a second section having a second width measured transverse to the aperture axis; a waist section having a third width measured transverse to the aperture axis, the waist section located between the first and second sections; and the third width being less than each of the first and second widths; a blade (211) having a cutting edge, the blade mounted adjacent the rotary cutter; and an electric motor (130) operably coupled to a power source and the rotary cutter to rotate the rotary cutter about a rotational axis of the rotary cutter so that a user's hairs are sheared between the cutting edge of the blade and the cutting edges of the cutter.

Claims16

Dependent claims

A shaving apparatus comprising:

a rotary cutter configured to rotate about a first rotational axis and comprising a cutter tube, the cutter tube comprising a plurality of closed-geometry apertures in an outer surface of the cutter tube, each of the closed-geometry apertures having a cutting edge;
a brush located inside the cutter tube and configured to rotate about a second rotational axis;
a blade having a cutting edge, the blade mounted adjacent the rotary cutter;
an electric motor operably coupled to a power source and the rotary cutter to rotate the rotary cutter about the first rotational axis so that a user's hairs are sheared between the cutting edge of the blade and the cutting edges of the cutter tube;
wherein the first rotational axis is offset from the second rotational axis;
and
wherein the offset in the first and second rotational axes causes bristles of the brush to extend outside of the apertures at a first location on a circumference of the cutter tube and to not extend outside of the apertures at a second location on the circumference of the cutter tube.

4 more elements

Dependencies are inferred from the claim text.

Shaving apparatus

Life of this patent

Shaving apparatus

Life of this patent

Abstract

Claims16