Animal husbandry – Waste toilet or related device – Walled receptacle; e.g. – litter box – etc. – containing...
Reexamination Certificate
2006-11-21
2006-11-21
Luu, Teri Pham (Department: 3644)
Animal husbandry
Waste toilet or related device
Walled receptacle; e.g., litter box, etc., containing...
C119S161000
Reexamination Certificate
active
07137355
ABSTRACT:
A self-cleaning litter apparatus that separates and extracts clumped litter waste material from litter material contained therein during use includes a chamber adapted to contain a quantity of litter material. The chamber is rotatable about a centrally disposed axis. A rake is disposed within the chamber. The rake is rotatable about an axis which is spaced apart from the chamber axis. A drive assembly is provided for simultaneously rotating the chamber about the chamber axis and for rotating the rake about the rake axis. The rake sweeps through the litter material while clumped litter waste material is directed toward the rake by rotation of the chamber to thereby separate clumped litter waste material from the litter material in the chamber, collect the separated clumped litter material in the rake and extract the separated clumped litter material from the chamber.
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Doskocil Manufacturing Company, Inc.
Locke Liddell & Sapp LLP
Luu Teri Pham
Smith Kimberly S.
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