Patent ID: 7874505

Claim:
A food ingredient grinder, comprising: a frame with a top and sidewalls for supporting the top above a support surface; a rotary electrical drive motor attached to the frame; a hollow rotary drive shaft rotated by the rotary motor when the motor is energized; a fixed grinding burr attached to the frame; a movable, rotatable grinding burr mounted in grinding relationship with the fixed grinding burr to grind food located between the fixed grinding burr and the rotatable grinding burr; an elongate rotary drive member fixedly attached to the movable grinding burr and received within the hollow rotary drive shaft for slidable movement relative to the hollow rotary drive shaft; means for releasably linking the elongate rotary drive member to the hollow rotary drive shaft to restrain the elongate rotary drive member against rotary movement relative to the hollow rotary drive shaft while allowing relative sliding movement between the hollow rotary drive shaft and the elongate rotary drive member; and means for selectively, slidably, moving the elongate rotary drive member relative to the hollow rotary drive shaft to automatically adjust spacing between the fixed grinding burr and the movable rotary grinding burr.