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US 5,372,095 AGranted
Pet litter box sifter
AssigneeAllbrook Developments Ltd.
InventorsEarl Dowling, Tod Hummelle
Life of this patent
Estimating the term…
Abstract
A pet litter box sifter is described includes a rigid grid-form containment tray having a bottom, a peripheral top edge, and walls extending upwardly from the bottom to the peripheral top edge. A window-like opening in one of the walls adjacent the bottom. The pet litter box sifter, as described, is easier to dump.
Claims4
A pet litter box sifter, comprising:
- a. a rigid grid-form containment tray integrally formed of polymer plastic having a bottom, a peripheral top edge, walls extending upwardly from the bottom to the peripheral top edge;
- and
- b. an enlargement in the grid of one of the walls adjacent the bottom and spaced from adjacent walls forms a window-like opening such that clumps of litter too large to pass through the grid can pass through the window-like opening.
A pet litter box sifter, comprising:
- a. a rigid grid-form containment tray in the shape of a truncated inverted pyramid having a bottom, a peripheral top edge, walls extending upwardly and outwardly from the bottom to the peripheral top edge;
- b. a flange extending outwardly from the peripheral top edge;
- and
- c. an enlargement in the grid of one of the walls adjacent the bottom and spaced from adjacent wall forms a window-like opening such that clumps of litter too large to pass through the grind can pass through the window-like opening.
1 more element
Dependencies are inferred from the claim text.