Litter Robot

Litter Robot is a self-cleaning litter box for cats that uses a rotating globe to sift the clumps from the clean cat litter.

It has been engineered to solve many of the problems associated with early automatic litter box designs.

Rake type boxes can get stuck on a clump and either burn out the motor, or fling the clump across the room. The rolling action of the Litter Robot globe let the clumps sift themselves from the litter bed and drop into a sealed drawer at the base. This lowers the stress on the motor, and does not depend on the motor power to remove the clumps.

Many automatic litter boxes rely on special litter or containers to work properly. The Litter Robot uses standard plastic garbage bags and any clumping litter.

Many early boxes did not have a warning system, and would activate while the cat was using their box. The Litter Robot has a sensor that can detect a five pound weight, and will not operate if the step into the litter compartment is depressed with the proper weight at any point in the operating cycle.

The design is self-correcting for many mistakes the user can make. The user cannot overfill the Litter Robot, as any excess is dumped into the drawer on the first cycle. The sensor is in the base, where it cannot be blocked by litter or cat access. Clumps that are too large to fit through the drop ports remain in the litter and do not interfere with continued operation. They can be broken up by the user and disposed of in the next cleaning cycle.

Once the cat exits the globe, a seven minute countdown waits for the clumping action of the litter to take place. This allows the clumps to be sifted out and the unit levels the litter bed for use.