Primary Inventor: Krishna P. Singh
Date of Publication: Nov. 29, 2022
Equipment Type: MPC
Status: Granted
Jurisdiction: US
Application Number: 17/073,939
Patent Number: US 11,515,056 B2
Docket Number: HOL-105
Prior Publication Data: US 2021/0210241 A1
Related U.S. Application Data:
- Continuation-in-part of application No. 16/695,450, filed on Nov. 26, 2019, and Pat. No. 11,289,227, and a continuation-in-part of application No. 16/116,994, filed on Aug. 30, 2018, and a continuation-in-part of application No. 15/709,098, filed on Sep. 19, 2017, now Pat. No. 11,250,962, and a continuation-in-part of application No. 15/294,896, filed on Oct. 17, 2016, now Pat. No. US 10,872,707 B2.
- Provisional application No. 62/772,986, filed on Nov. 29, 2018, provisional application No. 62/551,914, filed on Aug. 30, 2017, provisional application No. 62/396,565, filed on Sep. 19, 2016, provisional application No. 62/242,458, filed on Oct. 16, 2015.
China Patent No. ZL2016800621786
Abstract: A dry storage systems for radioactive nuclear waste materials in one embodiment includes a canister having a tubular shell defining an internal cavity for storing nuclear waste material, a lid sealably welded to one end the shell, and an end closure attached to a second end of the shell. The end closure includes a base plate having an upturned peripheral annular closure flange. In one embodiment, a circumferentially-extending butt joint is formed between the closure flange and the shell second end which is hermetically seals by a full through-wall thickness butt weld. Various embodiments may further include secondary pressure retention barriers enclosing the canister or select portions thereof most susceptible to failure under certain conditions.