Patent ID: 7228630

Claim:
A hair-cutting apparatus comprising: a cutting device for cutting hair; and a suction device for drawing off cut pieces of hair, said suction device comprising a suction channel, which is bounded by a plurality of channel walls, wherein at least or more of said channel walls extend into the vicinity of said cutting device and, wherein at least one of said channel walls ends in the vicinity of said cutting device, and surrounds a suction opening through which air can be drawn into said suction channel in one suction direction at a flow rate, wherein said suction device comprises a varier means for varying said flow rate in said vicinity of said cutting device; and wherein said varier means comprises a spring that interacts with an adjustable section of said at least one channel wall wherein said adjustable section moves in a linear direction in response to contact with the hair to be cut and adjusts said flow rate in said vicinity of said cutting device.