Pet litter box

Details Pet litter box Pet litter box

1985-05-10

1986-07-29

Swiatek, Robert P.

Animal husbandry

Entomological culture device

Egg treatment, production, or storage

209374, 209404, A01K 2900, A01K 1035

Patent

active

046025936

ABSTRACT:
An improved animal sanitary litter box comprising a pair of identical matingly interfitting stackable trays, each of the trays including a slidably movable bottom panel which is movable between a first, closed position for retaining a quantity of litter, and a second, open position. Litter is sifted downwardly from an upper tray to a lower tray, while solid animal excrement is retained on the bottom floor of the upper tray. The excrement can be discarded, the tray cleaned, and then returned to the lower position of the pair of trays. The tray into which the litter was sifted can then be placed atop the now-clean first tray and the litter reused. The size of the openings defined by the movable bottom panel and the floor of the tray is selectively variable for better sifting.

REFERENCES:
patent: 245617 (1881-08-01), Forbes, Jr.
patent: 3100474 (1961-09-01), Schneider
patent: 3194397 (1965-07-01), Taege
patent: 3476083 (1969-11-01), Vander Wall
patent: 3796188 (1974-03-01), Bradstreet
patent: 4027625 (1977-06-01), Wheeler
patent: 4217857 (1980-08-01), Geddie
patent: 4325325 (1982-04-01), Larter
patent: 4325822 (1982-04-01), Miller

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