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Fireproof impact limiter aggregate packaging inside shipping containers

United States Patent

October 9, 2001
View the Complete Patent at the US Patent & Trademark Office
Y-12 National Security Complex - Visit the Technology Transfer Website
The invention is a product and a process for making a fireproof, impact limiter, homogeneous aggregate material for casting inside a hazardous material shipping container, or a double-contained Type-B nuclear shipping container. The homogeneous aggregate material is prepared by mixing inorganic compounds with water, pouring the mixture into the void spaces between an inner storage containment vessel and an outer shipping container, vibrating the mixture inside the shipping container, with subsequent curing, baking, and cooling of the mixture to form a solidified material which encapsulates an inner storage containment vessel inside an outer shipping container. The solidified material forms a protective enclosure around an inner storage containment vessel which may store hazardous, toxic, or radioactive material. The solidified material forms a homogeneous fire-resistant material that does not readily transfer heat, and provides general shock and specific point-impact protection, providing protection to the interior storage containment vessel. The material is low cost, may contain neutron absorbing compounds, and is easily formed into a variety of shapes to fill the interior void spaces of shipping containers.
Byington; Gerald A. (Knoxville, TN), Oakes, Jr.; Raymon Edgar (Kingston, TN), Feldman; Matthew Rookes (Knoxville, TN)
BWXT Y12 LLC (Oak Ridge, TN)
08/ 940,295
September 30, 1997
United States Government has rights in this invention pursuant to Contract No. DE-AC05-84OR21400 between the U.S. Department of Energy and Lockheed Martin Energy Systems, Inc.