Abstract: A litter box and pivotal sifting device assembly having an open base portion and a pivotally movable sifting device operably attached thereto. The base portion also has a litter holding wing portion operatively associated therewith and extending upwardly and outwardly therefrom. The pivotal sifting device is initially disposed beneath a layer of loose litter material. Thereafter, the sifting device is pivotally movable up through the litter material to collect clumped absorbent litter and fecal matter wastes thereupon while permitting loose litter material to pass therethrough. The sifting device is pivoted still further to deliver the wastes to a disposal site.

Abstract: A litter box assembly comprising an open base portion having a litter holding wing portion extending upwardly therefrom and operatively associated therewith and a removable sifting device disposed therein beneath a layer of loose litter material disposed thereupon. The sifting device is removable from the base portion to remove clumped and fecal matter therefrom while permitting loose litter material to pass therethrough. The assembly is readily restored to a clean and ready for use condition by rotating the assembly onto the first and second wall portions of the wing portion whereupon in response to gravitational forces, the loose granular litter material flows into the wing portion and the sifting device is placed in the bottom of the base portion which is then recovered with the loose granular material by rotating the assembly from its position on the wall portions of the wing portion to an at-rest position on said base portion.