US Patent 7404494 Kinetic inertial delivery system

A system for front facing products without the use of product pushers or shelf dividers includes a generally flat panel which supports products and a motion providing device adapted to come into contact with the panel. The motion providing device may include a motor-driven cam that moves the panel quickly in one direction and then slowly in the opposite direction. During the quick movement of the panel, the friction between the panel and the products resting on the panel is released and the panel generally moves under the products while the products remain generally stationary. In this manner, products can be moved to the front end of a panel without use of a product pusher.