US Patent to Revolutionize Gas Transfer Between Tug and Barge

| USA, Seattle WA

Elliott Bay Design Group (EBDG)’s partner Moran Towing Corporation has been granted US Patent 8,967,174 for “Articulated conduit systems and uses thereof for fuel gas transfer between a tug and barge.” The patent was filed with the United States Patent and Trademark Office on May 2, 2014, and in general terms describes arrangements and methods for transferring boil off gas between a liquefied natural gas barge and its tug, while taking into account the relative motion between the two vessels.

“This design represents an advance in natural gas fuel transfer technology and demonstrates EBDG’s and Moran’s commitment to the emerging maritime LNG (Liquefied Natural Gas) transport industry,” stated Curt Leffers, PE, EBDG Project Manager and one of the inventors listed on the patent. “It also brings to realization the concept of using natural gas as fuel between a tug and a barge.”

The development of the system was the result of a collaborative effort over an approximate one year period by teams from both EBDG and Moran.

In February last year, EBDG obtained approval in principle (AIP) from classification society American Bureau of Shipping (ABS) for the design of a 2000 cubic meter liquefied natural gas (LNG) combination bunkering barge.

Elliott Bay Design Group LLC is an employee-owned company that provides naval architecture, marine engineering and production support services to owners, operators and shipyards across the United States.

(Source: Elliott Bay Design Group)

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