Automated litter device and method

A device comprising:

• (a) a support base;
• (b) a chamber, located on the support base, which includes:
• (i) an entry opening so that an animal can enter and exit the chamber;
• (ii) a screen and/or septum located at a back of the chamber, opposite the entry opening;
• (iii) a single axis of rotation that forms an angle of between about 80 degrees and about 55 degrees with a vertical plane;
• (iv) a track, which encircles an outside wall of the chamber and lies in one plane defining a track plane which forms an angle between about 10 degrees and 35 degrees with the vertical plane, for rotating the chamber around the single axis of rotation;
• (v) a single waste opening, located entirely on one side of the track plane in a wall of the chamber and on an opposite side of the track plane as the entry opening;
• and
• (vi) two chamber halves separated by the track plane;
• (c) a bonnet, which has a band-like shape and substantially a same contour as a portion of the outside wall of the chamber, extends over the portion of the chamber so that a front and a rear of the outside wall of the chamber remain uncovered by the bonnet, is attached to the support base on two sides of the chamber, and at least partially covers the track and the single waste opening so that during rotation of the chamber a pinch condition is prevented between the track, the single waste opening, or both and the support base;
• wherein during rotation of the chamber, the single axis of rotation funnels clumps, waste, or both towards and then out of the single waste opening.