The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2023
Filed:
Jun. 05, 2019
Tdw Delaware, Inc., Wilmington, DE (US);
Joshua D. Mitchell, Broken Arrow, OK (US);
William C. Keenan, Broken Arrow, OK (US);
William J. Tefft, Claremore, OK (US);
Joseph Alan Morton, Tulsa, OK (US);
Aaron M. Ritchie, Tulsa, OK (US);
Robert Fulton Hendricks, Tulsa, OK (US);
Samuel R. Boehning, Tulsa, OK (US);
TDW Delaware, Inc., Wilmington, DE (US);
Abstract
A closure [] for a cylindrical vessel includes at least one holding means [] configured to move the closure into a fully closed state, the holding means having a predetermined actuation force or torque to properly close the closure, the closure including one or both of the following failsafe failure detection features: a mechanical fuse [] having a predetermined load failure force below that of a load failure force of at least one component of the holding means and above that of a predetermined actuation force or torque to properly close the closure; or a block[] sized to at least partially overlap a pressure warning lock hole [] of the closure door when the closure is not in the fully closed state and to fully expose the pressure warning lock hole when the closure is in the fully closed state, thereby permitting insertion of a pressure warning lock [