Patent attributes
A self-cleaning litter apparatus (30) comprises a base (31); a turntable (32), rotatably mounted within the base; a pan (33), for holding a quantity of animal litter, the pan being rotatably driven with the turntable; a rake assembly (36), providing a rake movable through the animal litter; a waste receptacle (37) for receipt of animal waste deposited in the litter, the receptacle providing a door (155) selectively moving to open and close the receptacle relative to movement of the rake assembly; a sensing mechanism (120) comprising a plurality of weight sensors (66), and an electrically activated track assembly (121) for determining the presence of an animal in the pan; a drive mechanism (170) for rotating the turntable, driving the rake assembly and operating movement of the door and, a controller (259) having a timer, and selectively providing power to the sensing mechanism.
