Page 49: of Maritime Reporter Magazine (May 1995)

Skarhar Tanker Design

Patented

U.S. Shipbuilding Corporation,

Inc. (USSC) has been issued patent

No. 5,398,630 for a "Simplified

Midbody Section for Marine Ves- sels and Method and Apparatus for

Construction." This patent is the baseline concept for the Skarhar tanker design currently being de- veloped by USSC's sister company,

Shipbuilding Ventures, Inc. The patent has been designed to reduce labor hours during tanker construc- tion, by using the patented produc- tion approach of automatically weld- ing longitudinal girders to an inner and outer shell.

U.S. Patent Issued On New

Flexible Liner Approach

A recently-issued U.S. patent de- scribes a new approach to design- ing and installing flexible liners inside oil tankers and barges. In- stead of using large bladders or curtains, the approach uses small liner segments installed in indi- vidual stiffener bays.

The edges of each liner segment are secured in a water/oil-tight manner, using clamping bars bolted to the inboard edges of stiffeners and web frames. Hull inspection is achieved by unclamping the bars, and using small segments reduces the costs of manufacturing and in- stallation. Since the clamping bars are positioned away from the outer shell, a liner segment can be pushed a substantial distance inward, if a spill occurs, without requiring drag- ging or sliding of liner material across a steel surface.

The lining was invented by Phil

Ross, with the help of naval archi- tects Leonard Stanton and Tim

Layne, as well as Patrick Kelly, environmental engineer and presi- dent of JFKM Research.

For more information on the patent

Circle 105 on Reader Service Card

Singmarine Delivers First Of

Two Tankers To Petroships

Singmarine Industries Ltd. has completed and delivered a 6,500- dwt product tanker to Petroships

Pte. Ltd. The vessel, the first of a two-tanker contract for $35 mil- lion, was completed on schedule by

Singmarine Dockyard, the flagship company of Singmarine.

In a ceremony held at Singmarine

Dockyard's main yard, Mrs. Khoo

Kay Chai, wife of Dr. Khoo Kay

Chai, principal of Singapore Poly- technic, named the vessel Petro

Venture. Mr. Teh Kong Leong, chairman of Singmarine Dockyard and director of the marine depart- ment, said, "The prompt delivery of

Petro Venture, the first vessel we have built for Petroships, is a dem- onstration of our commitment to our customers as well as quality in our products. "We look forward to further strengthening our business relation- ship with Petroships through excel- lent service, both in our shipbuild- ing and ship repair divisions."

Measuring 360 ft. (110 m), MT

Petro Venture has a cargo capacity of 7,800 cu. m. with two cargo pumps, each delivering 750 cu. m. of oil per hour. Powered by a Hanshin en- gine, the 20-crewmember vessel is capable of a service speed of 12 knots.

It is built in accordance with the classification rules of Nippon Kaiji

Kyokai (NKK).

Meanwhile, work is in progress en Petro Venture's sister vessel, which is expected to be delivered in the third quarter of the year.

The Petroships Group owns and operates nine tankers and handles another four owned by its associates in Malaysia.

It is a member of a consortium involved in the development of a

Circle 295 on Reader Service Card port on the Changjiang River in

Changshu, north of Suzhou.

In addition to the second tanker for Petroships, Singmarine Dock- yard is presently busy with the con- struction of an LPG tanker for Thai

Oil Company, a containership for

Steamers Containerships Holdings

Pte. Ltd., and two harbor tugs for

Keppel Smit Towage Pte. Ltd.

For more information on Singmarine

Circle 77 on Reader Service Card

Safety first!!

Our Emergency Towing Systems fulfil the IMO, OPA 90, and

LOOP Regulations.

SEE US AT NOR-SHIPPING, STAND NO GD 09 13. -16.6 1995 9h

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Telephone + 47 37 08 73 00, Telefax + 47 37 08 65 50

Circle 245 on Reader Service Card

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Circle 257 on Reader Service Card

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May, 1995 51