Closure for vessel or pipeline
AssigneeIn-Line Flow Products Ltd.
InventorKeith Alan Kozak
Life of this patent
Estimating the term…
Abstract
An improved closure assembly for a pressure vessel or pipeline is described, where the closure assembly includes a davit assembly pivotally connecting a closure door to a closure hub where the closure door threadably attaches to the closure hub. The closure door is also threadably attached to the davit assembly where the threaded attachment between with the davit assembly is synchronized or timed with the threaded attachment between the closure door and the closure hub.
Claims20
A closure assembly for a pressure vessel or pipeline, the closure assembly comprising:
- a) a closure hub operatively coupled to the pressure vessel or pipeline, the closure hub configured to provide communication thereto;
- b) a closure door configured to threadably couple to the closure hub and seal off communication to the pressure vessel or pipeline;
- and
- c) a davit assembly operatively coupling the closure door to the closure hub, the davit assembly configured to support the closure door when the closure door is threaded off of the closure hub and to move the closure door away from the closure hub to provide access to the pressure vessel or pipeline, the davit assembly further comprising a davit nut threadably coupled to a threaded door pin extending outwardly from the closure door, wherein the door pin threads into or out of the davit nut in synchronization or in time with the closure door when the closure door is threaded off of or on to the closure hub, respectively.
An improved closure assembly for a pressure vessel or pipeline comprising a closure hub operatively coupled to the pressure vessel or pipeline wherein the closure hub is configured to provide communication thereto and a closure door configured to threadably couple to the closure hub and seal off communication to the pressure vessel or pipeline, the improvement comprising:
- a) a davit assembly operatively coupling the closure door to the closure hub, the davit assembly configured to support the closure door when the closure door is threaded off of the closure hub and to move the closure door away from the closure hub to provide access to the pressure vessel or pipeline, the davit assembly further comprising a davit nut threadably coupled to a threaded door pin extending outwardly from the closure door, wherein the door pin threads into or out of the davit nut in synchronization or in time with the closure door when the closure door is threaded off of or on to the closure hub, respectively.
Dependencies are inferred from the claim text.