A - Human Necessities – 01 – K
Patent
A - Human Necessities
01
K
A01K 1/01 (2006.01) A01K 1/015 (2006.01)
Patent
CA 2520495
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) 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 and the drive mechanism. A method for initiating a self-cleaning cycle in a litter apparatus comprises providing a litter apparatus (30) having a pan (33), providing a quantity of self-clumping litter, said pan being tiltably rotatable about an axis; a rake assembly (36), providing a rake (160), movable through said litter while said pan is rotating; and a controller, having a timer; providing a sensing mechanism (120) comprising a plurality of weight sensors (66), and an electrically activated track assembly (121); and initiating a self-cleaning cycle whereby said track assembly is contacted by at least one said weight sensor in response to the weight of an animal in said pan and upon contact, said track assembly provides a signal to said timer which initiates a self-cleaning cycle after a pre-determined period.
Deasy Richard
Wan Yiu Chung
Doskocil Manufacturing Company Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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