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Title: Clamshell closure for metal drum

Patent ·
OSTI ID:1160129

Closure ring to retain a lid in contact with a metal drum in central C-section conforming to the contact area between a lid and the rim of a drum and further having a radially inwardly directed flange and a vertically downwardly directed flange attached to the opposite ends of the C-section. The additional flanges reinforce the top of the drum by reducing deformation when the drum is dropped and maintain the lid in contact with the drum. The invention is particularly valuable in transportation and storage of fissile material.

Research Organization:
Savannah River Ecology Laboratory (SREL), Aiken, SC (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC09-96SR18500
Assignee:
Savannah River Nuclear Solutions, LLC (Aiken, SC)
Patent Number(s):
8,844,748
Application Number:
11/130,043
OSTI ID:
1160129
Resource Relation:
Patent File Date: 2005 May 16
Country of Publication:
United States
Language:
English

References (11)

Barrel ring lock assembly patent April 1980
Split ring locking assembly patent February 1982
Drum lock device patent September 1990
Automatic pin setting apparatus patent March 1993
Split lock ring for bulk material container patent March 1993
Widemouth steel drum of conical shape patent April 1993
Drum closure assembly patent December 1996
Molded drum, lid and ring-clamp system with enhanced containment integrity patent September 1999
Split ring closure for cylindrical drum patent October 1999
Closure ring assembly for an open-head drum patent August 2002
Response of Conventional Ring Closures of Drum Type Packages to Regulatory Drop Tests With Application to the 9974/9975 Package
  • Blanton, Paul S.; Smith, Allen C.
  • ASME 2002 Pressure Vessels and Piping Conference, Transportation, Storage, and Disposal of Radioactive Materials https://doi.org/10.1115/PVP2002-1617
conference August 2008

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