Patent ID: 8820570

Claim:
A method for producing a pressure vessel, the method comprising the steps of: forming a vessel liner with an aperture formed therein; providing an inner boss having an inner surface, an outer surface, and a liner channel formed integrally therein, the liner channel adapted to receive a portion of the vessel liner therein, wherein the liner channel has a substantially serpentine shape including alternating curved protrusions and curved recesses for bending and securing the vessel liner within the inner boss; disposing a portion of the vessel liner in the liner channel of the inner boss; clamping the portion of the vessel liner within the liner channel of the inner boss; and providing an outer boss secured to the inner boss; wherein: the inner surface of the inner boss forms a passage having a coupling element adapted to receive and engage a utility device therein; or the outer boss includes an inner boss channel for receiving the inner boss, wherein the inner surface and the outer surface of the inner boss are disposed adjacent a portion of the inner boss channel.