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:
Sep. 07, 2004
Filed:
Jun. 11, 2002
Applicant:
Inventor:
Michael Smith, Edmonton, CA;
Assignee:
Robbins & Myers Energy Systems, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D 4/532 ;
U.S. Cl.
CPC ...
B65D 4/532 ;
Abstract
Methods and systems are provided for operating a vessel or pipeline closure. A closure includes a hub fixedly and sealingly secured to the vessel, and a cap for threaded engagement with the hub . An anchor may be fixedly secured to the hub, and a plurality of stops each may be fixedly secured to a periphery of the cap . An end of a threaded rod is attached to a selected stop, which may be a slot in the cap. A threaded collar advances the threaded rod axially, thereby rotating the cap relative to the hub