Shaving apparatus

A shaving apparatus comprising:

• a handle portion;
• a power source;
• a head portion coupled to the handle portion, the head portion comprising:
• a rotary cutter comprising a cutter tube that comprises a plurality of apertures in an outer surface of the cutter tube, each of the apertures defined by a cutting edge having a closed-geometry;
• and
• a fixed blade having a cutting edge, the fixed blade mounted adjacent the rotary cutter;
• and
• an electric motor operably coupled to the power source and the rotary cutter to rotate the rotary cutter about a rotational axis so that a user's hairs are sheared between the cutting edge of the fixed blade and the cutting edges of the cutter tube when the rotary cutter is rotating.

A shaving apparatus comprising:

• a handle portion;
• a power source;
• an electric motor operably coupled to the power source and a rotary cutter to rotate the rotary cutter about a rotational axis;
• a head portion coupled to the handle portion, the head portion comprising:
• the rotary cutter, the rotary cutter comprising a plurality of apertures in an outer surface of the rotary cutter, each of the apertures defined by a cutting edge having a closed-geometry and comprising a shearing portion and a non-shearing portion;
• a fixed blade having a cutting edge, the fixed blade mounted adjacent the rotary cutter so that a user's hairs are sheared between the cutting edge of the fixed blade and the shearing portions of the cutting edges of the rotary cutter when the rotary cutter is rotating;
• and
• the apertures arranged in a pattern so that a projected reference line of the cutting edge of the fixed blade on the outer surface of the cutting tube intersects no more than two of the shearing portions irrespective of angular position of the rotary cutter.

A shaving apparatus comprising:

• a handle portion;
• a power source;
• an electric motor operably coupled to the power source and a rotary cutter to rotate the rotary cutter about a rotational axis;
• a head portion coupled to the handle portion, the head portion comprising:
• the rotary cutter, the rotary cutter comprising a plurality of apertures in an outer surface of the rotary cutter, the plurality of apertures arranged in a pattern comprising at least one row of the apertures, each of the apertures defined by a cutting edge having a closed-geometry and comprising a shearing portion and a non-shearing portion;
• a fixed blade having a cutting edge, the fixed blade mounted adjacent the rotary cutter so that a user's hairs are sheared between the cutting edge of the fixed blade and the shearing portions of the cutting edges of the rotary cutter when the rotary cutter is rotating;
• and
• the pattern configured so that a projected reference line of the cutting edge of the fixed blade on the outer surface of the cutting tube intersects at least one of the shearing portions of the apertures in the row and does not intersect at least one of the shearing portions of the apertures in the row.