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AssigneeIowa State University Research Foundation, Inc.
InventorDavid J. White
Estimating the term…
Composite material and plunger-cast pipe manufacturing method and system wherein the composite material includes waste, chemically unmodified PET material, one or more waste filler materials (e.g. rock crusher fines, lime sludge or waste coal combustion by-products), and fiber reinforcement (e.g. glass, metal, ceramic, carbon, organic, and polymer fibers) and wherein the PET material is melted and mixed in a container to disperse filler material and fiber reinforcement in the PET material. The resulting mixture can be formed into a tubular pipe shape using the plunger-cast manufacturing method and system wherein a plunger piston and inner collapsible mold are pushed into the melted composite material contained in an outer mold. When cooled and solidified in the mold, a composite material having a matrix comprising PET with filler material and fiber reinforcement distributed in the matrix is formed in the shape of a tubular body.
1-8. (canceled)
A method of making a tubular body, comprising introducing a flowable material in an outer mold and moving an inner mold having a smaller transverse dimension than the outer mold into the material to cause it to flow into a space between the outer mold and the inner mold such that it can form a solid material tubular body between the outer mold and the inner mold.
14-20. (canceled)
Dependencies are inferred from the claim text.