Abstract: A pressure vessel for transporting compressed gas at very high pressure without failing includes an inverted neck at the head so that pressure from compressed gas is applied to the neck in a converging manner. A plug valve is inserted into the opening defined by the neck to seal the pressure vessel. As pressure from the compressed gas enclosed in the pressure vessel increases, engagement between the neck and the plug also increases. Therefore, the pressure vessel can withstand higher levels of pressure from compressed gas before failing during hydro and burst testing.

Abstract: An induction heater is used to heat composite reinforced pipe (CRP) prior to a bending operation. By heating the composite reinforcement to approximately 90° F.-110° F., the incidence of circumferential stress cracks in the resin is significantly reduced. Resin cracking is also reduced by incorporating longitudinal fibers in the composite reinforcement during manufacture of CRP.

Abstract: An apparatus and method for transporting compressed gases or similar materials. The apparatus includes an exterior housing dimensioned for intermodal transportation that contains a rack that holds pressure vessels. The apparatus may be loaded with pressure vessels and the vessels filled within the apparatus. The apparatus may be transferred between modes of transportation along a delivery route without unloading the vessels from the apparatus.

Abstract: A composite reinforced line pipe is manufactured by aligning first and second pipe segments each having a composite reinforcement wrapped circumferentially about a core, attaching the line pipes at a cut-back portion of their exposed core, wrapping a joint tape circumferentially about the cut-back portion, wrapping a resin reinforcement tape circumferentially about the joint tape, and curing the joint tape and resin reinforcement tape.

Abstract: A composite reinforced line pipe is manufactured by aligning first and second pipe segments each having a composite reinforcement wrapped circumferentially about a core, attaching the line pipes at a cut-back portion of their exposed core, wrapping a joint tape circumferentially about the cut-back portion, wrapping a resin reinforcement tape circumferentially about the joint tape, and curing the joint tape and resin reinforcement tape.

Abstract: A system is disclosed for the manufacture and use of a composite reinforced gas transport module (“GTM”). A metal shell of the system is wrapped circumferentially with a composite reinforcement, the composite reinforcement is post cured and the metal shell is then pressurized beyond the yield point of its material to load the composite reinforcement. The system is then brought to ambient temperature. The expansion deformation of the metal shell due to pressurization beyond the yield point results in a loading of the metal shell by the cured composite reinforcement at ambient temperature. Thus, a negative hoop stress condition is created in the metal shell at ambient to reduce the hoop stresses created during subsequent pressured operation.