US Patent 7766267 Shelling and grinding apparatus

An apparatus for reducing and separating an associated agricultural product into two or more sub-parts is provided. A first housing includes an inlet and an outlet, the inlet being configured to receive the associated agricultural product to be reduced. A first reducing assembly is disposed between and in communication with the inlet and the outlet of the first housing and includes a first rotatable reducing member, a second rotatable reducing member, and a reaction member. The first reducing member, the second reducing member and the reaction member are disposed adjacent to the other and cooperate to receive and reduce the associated agricultural product to a plurality of first sub-parts. A second housing includes an inlet and an outlet, the inlet being configured to receive select ones of the plurality of first sub-parts. A second reducing assembly is disposed between the inlet and the outlet of the second housing and includes a reducing rotor and a stationary reducing ring. The reducing ring is secured to the second housing and is disposed between the reducing rotor and the outlet of the second housing. The select ones of the plurality of first sub-parts are further reduced to a plurality of second sub-parts by the second reducing assembly and discharged via the outlet of the second housing.