Patent ID: 7051678

Claim:
An enclosed litter box, comprising: a chassis comprising a structure comprising two side walls, an end wall, a base comprising a width, an end opening comprising an end edge, and a base rail comprising a width attached to the chass; structure along a lengthwise direction of the two side walls, the base rail width being less than the base width; a removable litter tray comprising a first position, a second position, a wall structure comprising a first end, a second end, and a tray rail attached to the wall structure slidably coupled to the chassis such that the first end is closer to the end wall of the chassis than the second end when the litter tray is in the first position inside the chassis before sliding to a second position; an enclosure enclosing the removable litter tray; wherein the second position is characterized by the first end of the litter tray spaced apart from the end wall of the chassis by a greater distance than when in the first position; and wherein the tray rail overlaps and contacts, at least in part, the base rail when the litter tray is in the first position.