Canister Apparatus for Dry Storage of Spent Nuclear Fuel and Method of Using the Same (Double Walled Canister)

Primary Inventor: Krishna P. Singh
Contributing Inventor(s): Stephen J. Agace
Date of Publication: December 22, 2016
Status: Published
Jurisdiction: UKR, USA
Equipment Type: DWC
Docket NumberHOL-013
Publication Number: US 2016/0372224 A1
Application Number: 14/590,506
Patent Number(s):UKR 104989

Related US Application Data:

  • Application No. 13/418,930, previously published as US 2013/0070885 A1, and now Patent No.  US 8,929,504 B2.
  • Division of Application No. 11/851,352 filed on September 6, 2007, previously published as US 2008/0069291 A1 on March 20, 2008, now Patent No. US 8,135,107 B2.

Abstract: A canister apparatus, basket apparatus and combinations thereof for transporting and/or storing high level radioactive waste, such as spent nuclear fuel. The canister apparatus comprises a cavity for receiving the spent nuclear fuel that is surrounded by two independent gas-tight containment boundaries. The structures that form the two independent gas-tight containment boundaries are in substantially continuous surface contact with one another, thereby facilitating sufficient heat removal from the cavity. In another aspect, the invention is a basket apparatus having a plurality of disk-like grates arranged in a stacked and spaced arrangement so that the cells of the disk-like grates are aligned. In still another aspect, the invention can be a basket apparatus having a disk-like grate having a ring-like structure encompassing a gridwork of beams specially arranged to achieve a unique cell configuration.