Patent ID: 6742957
Filing Date: 2004-06-01
Classification: B01J,F16J,F16L,F17C,Y10T

Abstract:
A closure to sealingly enclose a port in a vessel, comprising:a hub having a vessel end fixedly and sealingly secured to the vessel, a through bore, a cap end opposite the vessel end, and a cap engagement thread on the cap end; a cap including a hub engagement thread for threaded engagement with the cap engagement thread; an anchor fixedly secured to the hub; one or more pulling stops positioned along a periphery of the cap; a connector body secured to the anchor; a collar rotatable relative to the connector body about an axis and having internal threads for mating engagement with a threaded rod; the threaded rod passing through the collar and the connector body, such that rotation of the collar moves the threaded rod axially with respect to the connector body; and a flexible, elongate member secured at one end to the threaded rod, and having one or more stop-engagement members along its length to selectively engage a selected one of the one or more pulling stops on the cap, such that the collar may be rotated to selectively thread and unthread the cap from the hub.