Patent ID: 8186536
Filing Date: 2012-05-29
Classification: F17C,Y02E

Abstract:
1. A boss for use with a vessel, the boss comprising: a first component including a neck portion and a shoulder portion, the first component adapted to be formed in an opening of the vessel, wherein the first component includes a first coupling element; and a second component including a neck portion and a shoulder portion, the neck portion including a second coupling element, wherein the second coupling element is adapted to engage the first coupling element to secure the second component to the first component, wherein a space exists for receiving a liner of the vessel when the first coupling element is engaged with the second coupling element, the space located between a part of the neck portion of the first component and a part of the neck portion of the second component and between a part of the shoulder portion of the first component and a part of the shoulder portion of the second component.