LNG tank ship having LNG circulating device

US8943841B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8943841-B2
Application numberUS-42913909-A
CountryUS
Kind codeB2
Filing dateApr 23, 2009
Priority dateFeb 12, 2007
Publication dateFeb 3, 2015
Grant dateFeb 3, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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Abstract

Official abstract text for this publication.

Disclosed is a liquefied natural gas storage apparatus. The apparatus includes a heat insulated tank and liquefied natural gas contained in the tank. The tank has heat insulation sufficient to maintain liquefied natural gas therein such that most of the liquefied natural gas stays in liquid. The contained liquefied natural gas has a vapor pressure from about 0.3 bar to about 2 bar. The apparatus further includes a safety valve configured to release a part of liquefied natural gas contained in the tank when a vapor pressure of liquefied natural gas within the tank becomes higher than a cut off pressure. The cut off pressure is from about 0.3 bar to about 2 bar.

First claim

Opening claim text (preview).

What is claimed is: 1. An LNG tank ship for transporting LNG, the LNG tank ship comprising: an LNG tank containing liquid phase (LNG) and gaseous phase (boil-off gas); a safety valve configured to release part of the boil-off gas from the tank when a vapor pressure within the tank exceeds a cut-off pressure of the safety valve, wherein the safety valve is configured to adjust the cut-off pressure within a range between a first value and a second value, the first value being 0.25…

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What does patent US8943841B2 cover?
Disclosed is a liquefied natural gas storage apparatus. The apparatus includes a heat insulated tank and liquefied natural gas contained in the tank. The tank has heat insulation sufficient to maintain liquefied natural gas therein such that most of the liquefied natural gas stays in liquid. The contained liquefied natural gas has a vapor pressure from about 0.3 bar to about 2 bar. The apparatu…
Who is the assignee on this patent?
Lee Jung Han, Choi Jung Ho, Han Sung Kon, and 3 more
What technology area does this patent fall under?
Primary CPC classification F17C3/00. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).