Fluent material handling – with receiver or receiver coacting mea – With material treatment – Heating or cooling
Reexamination Certificate
2005-12-19
2008-12-16
Maust, Timothy L (Department: 3751)
Fluent material handling, with receiver or receiver coacting mea
With material treatment
Heating or cooling
C141S005000, C141S045000, C141S290000, C062S606000, C062S048100, C062S050700, C062S053100
Reexamination Certificate
active
07464734
ABSTRACT:
A system for transfer of cryogenic fluids and a method to keep the system at cryogenic temperatures during non-transfer periods requires an insulated transfer pipe that is inclined with a high end at a storage tank, a transfer jumper extending from the high end to the vapor area of the tank and a feeding line fluidly connecting to the high end also. During idle periods, the cryogenic liquid is fed from the storage tank into the transfer pipe to compensate the liquid that vaporizes in the transfer pipe due to heat leakage from the surroundings. The fed liquid flows down by gravity, and the boil-off gas flows back to the storage tank along the top of the transfer pipe and through the transfer jumper. As a result, the transfer system is kept at cryogenic temperatures.
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Arnett Nicolas A
Maust Timothy L
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