Patent ID: 8881932
Filing Date: 2014-11-11
Classification: B23P,B65D,F17C,Y10T

Abstract:
1. A pressurized-gas storage assembly, comprising: a liner defining a gas storage chamber and having an end portion with a planar surface, with an access opening on the planar surface that is in fluid communication with the gas storage chamber, the liner further including a raised circular ring extending from the planar surface and surrounding the access opening, the raised circular ring having inner and outer side walls, with a first set of helical threads provided on the inner side wall and a second set of helical threads provided on the outer side wall; a polar boss having a longitudinally extending part that has a top surface with a recessed opening, and a planar bottom surface, with a channel extending through the polar boss and communicating with the recessed opening and terminating at the bottom planar surface to serve as a passageway through the polar boss, the polar boss further including a circular groove provided on the planar bottom surface, the circular groove having inner and outer side walls, with a third set of helical threads provided on the inner side wall of the circular groove and a fourth set of helical threads provided on the outer side wall of the circular groove; and an outer shell provided around entirety of the liner, the outer shell having an edge-defining aperture that receives the polar boss.