Primary Inventor: Krishna P. Singh
Date: Mar. 1, 2022
Status: Granted
Jurisdiction: US
Assignee: Holtec International, Inc.
Equipment Type: HI-STORM 100M
Docket Number: HOL-009
Patent Number: US 11,264,142 B2
Application Number: 16/780,863

Prior Publication Data: US 2020/0227182 A1 – Jul. 16, 2020

Related US Application Data:

  • Continuation of application No. 15/702,241, file on Sep. 12, 2017, now Pat. No. US 10,614,924 B2, which is a continuation of Application No. 14/271,101, previously published as US 2014/0366182 A1, and now Patent No.  US 9,761,339 B2
  • Division of application No. 12/709,094, filed on December 19, 2010, published as US 2010/0150297 A1, now Patent No. US 8,718,220 B2
  • Continuation-in-part of Application No. 11/352,601, filed on February 13, 2006, now Patent No. US 7,676,016.
  • Provisional application No. 60/652,363, filed on February 11, 2005.

Abstract: A system and method for storing multiple canisters containing high level waste below grade that afford adequate ventilation of the spent fuel storage cavity. In one aspect, the invention is a ventilated system for storing high level waste emitting heat, the system comprising: an air-intake shell forming an air-intake cavity; a plurality of storage shells, each storage shell forming a storage cavity; a lid positioned atop each of the storage shells; an outlet vent forming a passageway between an ambient environment and a top portion of each of the storage cavities; and a network of pipes forming hermetically sealed passageways between a bottom portion of the air-intake cavity and at least two different openings at a bottom portion of each of the storage cavities such that blockage of a first one of the openings does not prohibit air from flowing from the air-intake cavity into the storage cavity via a second one of the openings.