Subsea BOP control system with dual-action check valve

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United States of America Patent

PATENT NO 9810336
APP PUB NO 20170102085A1
SERIAL NO

15255379

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A subsea hydraulic system comprises a dual (or dual action) check valve on a port for connection to a remotely operated vehicle (ROV). The check valve provides backpressure to flow in either direction. This keeps hydraulic fluid in the hydraulic system, and seawater out. If flow needs to return to the ROV, it may flow out the port, subject to a selected back pressure.

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Patent Owner(s)

  • NATIONAL COUPLING COMPANY, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goggans, Timothy Cypress, US 5 16
Hollister, Frank Harold Sugar Land, US 13 32
Smith,, III Robert E Missouri City, US 48 166

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