Transportation and/or storage containers for radioactive material

US4456827A · kind A · utility

Assignee

• Transnuklear GmbH · DE

Inventors

• Werner Botzem · Alzenau, DE
• Reiner Laug · Hanau, DE
• Hartmut Kroll · Hanau, DE
• Elmar Schlich · Grundau, DE
• Walter Anspach · Hanau, DE
• Karl Brendel · Mülheim, DE
• Peter Srostlik · Maintal, DE

Key dates

• Filing date: Jul 10, 1981
• Grant date: Jun 26, 1984
• Expiry date: Jul 10, 2001

Classification

• Technology area (CPC G): Physics
• CPC primary: G21F5/10
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An improved container for transportation or storage of radioactive substances, especially spent nuclear fuel elements, has a cylindrical open-top thick-wall metallic body for shielding gamma radiation. A liner for the container has a top peripheral flange engaged with the bottom of a counterbore in the container open top. A thick gamma-ray shielding cover for the lining is disposed in the counterbore and screw means detachably secure both the lining flange and the cover to the body independently. The body has exterior generally parallel spaced cooling fins transversely intersected by flanges of lesser height to minimize fin cracks extending into the body. Neutron shielding is disposed in the exterior spaces between the fins and the flanges.