Patent ID: 7263951
Filing Date: 2007-09-04
Classification: A01K

Abstract:
1. An apparatus for a self-cleaning litter box, said apparatus comprising: a base adapted to receive a quantity of litter, said base having an inside area defining a partial cylinder; a rake having a plurality of tines and a waste support member; a rake motor operatively connected to said rake, said rake motor rotating said rake about a longitudinal axis of said rake, said rake motor rotating said rake in an up direction and in a down direction; a plurality of rake limit switches each set to actuate upon said rake reaching a selected position; a turret located on a center line of said partial cylinder, said turret sweeping said rake through a selected area of said base; a turret motor operatively connected to said turret, said turret motor rotating said turret in a forward direction and a reverse direction; a plurality of turret limit switches each set to actuate upon said turret reaching a selected position; a motor overload sensor sensing overload conditions in said rake motor and said turret motor; an animal sensor adapted to sense a presence of an animal in said base; and a controller programmed to execute a process for controlling said rake motor and said turret motor.