Patent ID: 7757637

Claim:
A litter box lifting device, comprising in combination: a housing having a pair of planer side walls, a planer rear wall, a planer front wall having an opening therein to permit ingress and egress of an animal, a planer base having first and second ends, and the side walls, front wall and rear wall extending substantially vertical at right angle from the base and each wall having an upper edge; a lid having first end, second end, inner surface and outer surface, and being pivotally mounted to the housing, the lid being capable of being in an open and a closed position; a pair of opposed gas springs having first and second ends, each being mounted at the first end to the inner surface of the lid and at the second end to one of the side walls; a holding member mounted juxtaposed the upper edge of the front and a latch rotatably connected to the holding member; a pair of opposed cam arms, each having a first end mounted to the inner surface of the lid, an arcuate-shaped second end, and an elongated slot integrally formed and extending longitudinally from relative mid-point of the cam arms to the second end; a tray being structured for holding a box retaining a quantity of litter material having a top surface and a bottom surface; a pair of opposed tray side walls having upper and lower edges, the lower edge of the tray side walls of the tray being mounted to the top surface of the tray and the tray side walls extending vertical at right angle from the tray; roller means connected to the tray side walls and positioned within the slot of the cam arms; and whereby pivoting the lid from closed position results in the roller means moving along the elongated slot of each cam arm resulting in the tray being in an elevated position.