Patent ID: 7559689

Claim:
Equipment for managing physical stress caused by thermal changes associated with the refill and exhaustion of gas in a high pressure storage tank comprising: a cylindrical tank having hemispherical shaped ends at each longitudinal end of the cylinder; a fixed boss fitting disposed at the center of each longitudinal end of the cylinder; an in situ heat exchange device installed between the interior end sections of the interior of the tank along the central longitudinal axis of the tank and being secured within the tank by the boss fittings disposed at the longitudinal ends of the tank, the in situ heat exchange device including gas flow channels for management of the thermal properties of the gas therein; one end of the in situ device having a stem segment extending longitudinally along the longitudinal axis of the device; a boss at the end of the cylinder having a receptacle for receiving the end stem of the in situ device; the stem and receptacle having a relationship such that the stem fits within the receptacle with a mechanical tolerance allowing longitudinal displacement and axial rotation between the in situ device and the tank.