Double-shell tank and liquefied gas carrier ship
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United States of America Patent
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Feb 19, 2019
Grant Date -
May 19, 2016
app pub date -
May 30, 2014
filing date -
Jun 19, 2013
priority date (Note) -
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Abstract
A horizontal type cylindrical double-shell tank includes an inner shell and an outer shell. The inner shell includes an inner shell main part storing a liquefied gas and an inner shell dome protruding from the inner shell main part. The outer shell forms a vacuum space between the inner shell and the outer shell, and includes an outer shell main part surrounding the inner shell main part and an outer shell dome surrounding the inner shell dome. The inner shell dome is provided with an inner shell manhole. The outer shell dome is provided with an outer shell manhole at a position corresponding to a position of the inner shell manhole.
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