Alcoa Inc.

Aluminum Company of America

Andrew J Hinkle

David S Bennett

Daniel D Roup

Craig C Menzemer

James T Burg

Janet C Swearingen

Charles I Fuller

William C Herbein

J Daniel Bryant

Ross E Grimm

Narsimhan Raghunathan

A method of operating a twin wheel conform metal extrusion device or a cladding extrusion device for producing a composite of an extruded metal shell bonded to a metal foam core. A metal feedstock is extruded through an extrusion die defining a cavity housing a hollow extrusion mandrel to produce a metal shell. Liquid foam of a second metal is simultaneously delivered through the hollow mandrel bore such that the foam exiting the axial bore is metallurgically bonded to the metal extruded through the cavity.

Coextruded products of aluminum foam and skin material

A container module for intermodal transportation and temporary storage of dry flowable product includes a pressure tank supported by hanger plates welded to end frames of a support frame defining a standardized container envelope. The pressure tank has a wall with a flat top center section and short flat side sections joined by upper cylindrical intermediate sections and lower cylindrical sections below the flat side sections which blend into a plurality of intersecting, downwardly discharging hoppers. Elongated beam members extending along each side of the support frame tie the hoppers together to resist bending of the suspended tank.

Container module for intermodal transportation and storage of dry flowable product

An elongated metal frame structure for connecting a large elongated container to a vehicle employed in transporting the container. The frame comprises a plurality of aluminum alloy tubes connected together at certain corners of the frame by corner assemblies. The assemblies comprise a 'standard' cast iron or steel fitting and at least one steel member connected to one face of the fitting. The exterior surfaces of each steel member are coated with materials that are effective in electrically separating the steel member from an aluminum tube of the frame when the corner assemblies and aluminum tubes are assembled together. The size of the steel members in cross section with the materials applied to the surfaces of the steel member is such that the steel member can slip into the end of the aluminum tube located at a corner of the frame.

Standard corner fittings for aluminum container frames

Growing community of inventors

Pittsburgh, PA, United States of America

Andrew J Hinkle