Damper structure for a sealed derrick

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United States of America Patent

PATENT NO 9297545
APP PUB NO 20130277062A1
SERIAL NO

13881369

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided is a damper structure for an enclosed derrick, which can constantly compensate and maintain a pressure of an inner space of an enclosed derrick structure. The damper structure for the enclosed derrick includes: one or more communication ducts installed in a side of the enclosed derrick; and one or more open/close dampers coupled to the communication ducts to open or close the communication ducts, whereby air is selectively supplied to or exhausted from the enclosed derrick.

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Patent Owner(s)

Patent OwnerAddress
TRANSOCEAN SEDCO FOREX VENTURES LIMITEDGEORGE TOWN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brittin, D Scott Katy, US 6 7
Choo, Keum Dae Gyeongsangnam-do, KR 4 3

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