Abstract: This invention is a conveying system for the transport of live fowl including a receiver assembly having an inlet thereto and outlet therefrom for live fowl and having an airlock assembly therebetween the inlet and outlet; a fowl conduit having an inlet thereto and outlet therefrom connected to the receiver assembly inlet; a suction apparatus mounted on the frame structure and connected to the receiver operable to provide a pressure drop between the fowl conduit inlet and the receiver assembly. More particularly, this invention is a system adapted to move live fowl through a fowl conduit, into a receiver assembly, through an airlock assembly and out of the receiver assembly.

Abstract: An improved fluid pump having two or more cylindrical eccentric or elliptical rotors drive connected to revolve together at identical angular velocities, and positioned in cylindrical chambers for compressing fluids therein. The pump includes separate intake ports and discharge ports to and from the chambers allowing the pump to be used as a single stage pump or by connecting the discharge port of one chamber with the intake port of the other chamber the pump can be used as a two stage pump for increased pressure with less volume.

Abstract: A reciprocating airlock valve used in the transfer of granular and powdered stock between two operations and the maintenance of a pressure differential therebetween. The airlock valve designed to maintain an air seal between the two operations while providing continuous material flow through the valve.