Patent ID: 10695924

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.