Patent ID: 8429790

Claim:
An apparatus comprising: (a) a vacuum nozzle having a hollow body terminating in a mouth opening and attachable to a vacuum source; and (b) 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, where each tooth has a blunt apex, two substantially parallel sides and two edges descending from the apex to the common blade structure; the edges of each tooth are formed sharp and oriented approximately perpendicular to a side of the tooth; the sharp teeth edges collectively are oriented toward one side of the grooming blade; the common blade structure has edges and comers 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, whereby 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.