CPC B67C 3/2614 (2013.01) [B67C 3/26 (2013.01); B67C 2003/2602 (2013.01); B67C 2003/2668 (2013.01); B67C 2003/2674 (2013.01); F16L 37/113 (2013.01)] | 17 Claims |
1. A gas stem assembly comprising:
a vent tube having a seal portion and at least one protrusion, the at least one protrusion extending radially from the vent tube;
a receiver having a non-circular opening and an attachment surface at an end of the non-circular opening, wherein the seal portion and at least one protrusion of the vent tube are able to be passed through the non-circular opening when the vent tube and the at least one protrusion are aligned with the non-circular opening, wherein the attachment surface of the receiver contacts the at least one protrusion to inhibit the at least one protrusion from passing back through the non-circular opening when the at least one protrusion is misaligned with the non-circular opening.
|