Patent ID: 8918955

Claim:
An apparatus comprising: a vacuum nozzle comprising a hollow body terminating in a mouth opening and adapted to be attached to a vacuum source; and a grooming blade spanning the mouth opening, the grooming blade having two sides and comprising a plurality of teeth supported by a common blade structure, each tooth comprises a blunt apex, at least one side and two edges descending from the apex to the common blade structure, at least one edge of each tooth is formed sharp and substantially perpendicular to at least one side of the tooth; at least a plurality of the sharp teeth edges collectively are substantially perpendicular to one side of the grooming blade; the common blade structure has edges located between supported teeth that are configured blunt; and the grooming blade is positioned geometrically coplanar with, or at an angle acute to, a plane perpendicular to a theoretical plane parallel to the mouth opening to allow negative airflow created by the vacuum source to flow over at least one of the two sides of the grooming blade, wherein, during grooming operations, as the grooming blade is pushed or pulled across a pet's coat, the negative airflow lifts top coat hair of the pet's coat to expose undercoat hair to the sharp edges of the grooming blade teeth which are configured to remove ready-to-be-shed undercoat hair by snagging the ready-to-be-shed undercoat hair.