Patent ID: 7419111

Claim:
A food processing apparatus, comprising a housing, a power source in the housing and having an upright rotary output shaft, a bowl removably mounted on said housing and having an open top and a bottom portion with an opening for receiving the output shaft, and a rotatable blade assembly mountable on the shaft, the blade assembly including a main hub having two opposed horizontally cutting blades spaced apart in elevation fixed to the main hub and an upper blade assembly formed with a hollow cylindrical hub having two opposed substantially horizontal cutting blades spaced apart in elevation selectively mountable on the main hub, and the upper blade cylindrical hub having at least one key on the interior surface thereof; wherein the cylindrical hub of the upper blade assembly fits on and is secured to the main hub by at least one projection and a cooperating slot, the upper blade assembly is selectively removable from the main hub with the blade assembly is operatable with the lower of the said two independent blade assemblies as the only cutting means or with the lower independent blade assembly and upper blade assembly functioning together as the cutting means.