Closure for a pressure vessel and method

摘要

A closure assembly 10 contains positive and/or vacuum pressure within a pressure vessel 16 having a neck 12 . A circumferential locking member 22 supported on a door 20 locks the door to the neck, and is radially moveable between an open position and a closed position. A seal 26 between the neck and the door maintains fluid-tight integrity. A lever or other hand powered operator may be used for moving the locking member between the open position and the closed position. The locking member may include locking segments interconnected to form the circumferential locking member.