The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2001
Filed:
Sep. 20, 1999
Applicant:
Inventor:
Ryotaro Nohmura, Osaka, JP;
Assignee:
Taiyo Kogyo Corporation, Osaka-fu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F17C 1/00 ;
U.S. Cl.
CPC ...
F17C 1/00 ;
Abstract
Methane hydrate gas is trapped on the bottom of the sea or on the bottom of the water without releasing it into the open air. A sheet (flexible sheet),is formed and is sunk on the bottom of the sea or on the bottom of the water to cover a predetermined area. The sheet,is spread on the bottom of the sea or on the bottom of the water to trap the methane hydrate gas inside the sheet,as the inside of the sheet,is lifted up by the buoyancy of methane gasified in the area on where the sheet,is spread.