Patent ID: 6663149
Filing Date: 2003-12-16
Classification: F16J,F16L,Y10T

Abstract:
A closure to sealingly enclose a port in a vessel, the port having a port axis, the closure comprising:a hub having a vessel end fixedly and sealingly secured to the vessel, a through bore having a through bore axis, a cap end opposite the vessel end, and a cap engagement thread; a cap including a hub engagement thread for threaded engagement with the cap engagement thread; an anchor fixedly secured to one of the hub and the cap; a tightening pulling ear and a loosening pulling ear each fixedly secured to another of hub and the cap, the tightening pulling ear for tightening the cap to the hub and the loosening pulling ear for loosening the cap from the hub, each of the tightening pulling ear and the loosening pulling ear having a pulling surface thereon; a pulling bar having an anchor end pivotally secured to the anchor and an opposing pulling member end; a pulling member having a pulling bar end selectively securable to the pulling member end of the pulling bar and an opposing end removably engagable with the pulling surface on the tightening pulling ear for tightening the cap to the hub, and with the pulling surface on the loosening pulling ear for loosening the cap from the hub; and a pulling stop simultaneously engagable with each of the pulling member end of the pulling bar and the pulling bar end of the pulling member for selectively moving the pulling member relative to the anchor and thereby rotate the cap relative to the hub.