Auto-Rotating Muddler

Abstract

A muddler includes a handle and a shaft extending axially from the handle. The handle has a bore with helical grooves in the interior surface thereof. The shaft has a proximal end received in the bore, and a pin extends through the shaft to engage the helical grooves. A compression spring in the bore urges the shaft distally. A pestle head is secured to the distal end of the shaft, with a convex distal end surface having a plurality of projections extending distally to contact the solid materials to be crushed and bruised or broken. A force transmitted distally from the handle causes the spring to compress, driving the proximal end of the shaft into the bore and causing the shaft to rotate, further bruising and crushing the solid ingredients and creating a mixing action among the solid ingredients.

Dependencies are inferred from the claim text.