Patent ID: 9056701
Filing Date: 2015-06-16
Classification: B65D,F16J

Abstract:
1. A closure for pressurized system or vessel, comprising: a hub having a generally cylindrical shape with a central opening; a head positionable within said central opening of said hub and removable from said central opening of said hub; a davit operably engaging said head to at least one of lift and lower said head from within said central opening; a central post extending from said head; a spool having a plurality of arms extending from said spool, said spool rotatably positioned about said post; said radial arms pivotally connected to said spool and pivotally connected to a locking ring segment, said locking ring segment having a recess for pivotally receiving said radial arm; said spool and said post operably engaged wherein pivotal motion of said spool causes said spool to move axially along said post; said locking ring segment and said head having tapered surfaces allowing axial movement of said locking ring segment along said head with said axial movement of said spool.