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McMullen Assoc. Opens Hampton Roads Office —Joseph Bunting Named John J. McMullen Associates, Inc., naval architects, marine en- gineers and transportation con- sultants of One World Trade Cen- ter, New York, N.Y. 10048, have announced the opening of a new office located at 2101 Executive Drive, Hampton Roads, Va. 23666. Designated as the Hampton Roads Operation, this office will provide U.S. shipyards and government agencies with the full range of de- tailed design and engineering serv- ices required for new construction, ship conversions and modifications of commercial and naval vessels. With the establishment of its Hampton Roads Operation, Mc- Mullen Associates can now offer clients a complete range of techni- cal and consulting services, rang- JSL American-Darling Valve A Division of American Cast Iron Pipe Company P O Box 2727, Birmingham, Alabama 35202 ing from preliminary economic analysis and concept formulation through every phase of design up to and including testing and opera- tional support. Joseph K. Bunting has been designated as manager of the Hampton Roads Operation. Mr. Bunting comes to McMullen As- sociates from Newport News Ship- building & Dry Dock Company, where he was design section man- ager of the Piping Design Depart- ment. Mr. Bunting has attended Virginia Polytechnic Institute and completed various industrial train- ing courses and seminars. During his more than 25 years of experi- ence with Newport News Ship- building & Dry Dock, Mr. Bunting has participated in the detailed design of many of the largest com- mercial and military ships built in the United States. Joseph K. Bunting McMullen Associates is an engi- neering consulting company which serves the marine transportation industry in areas of naval archi- tecture, marine engineering, trans- portation economics, and project management. Charles Hurd Joins Southwest Marine, Inc. Charles A. Hurd Charles A. Hurd has joined Southwest Marine, Inc. as vice president, sales and marketing. Southwest Marine is a multi- faceted marine repair and con- struction facility located on seven acres in Chula Vista, Calif., on San Diego Bay. Mr. Hurd has responsibility for ship repair and construction sales in both the commercial and gov- ernment markets. A native of Berkeley, Calif., Mr. Hurd brings nine years of sales experience to Southwest Marine, having held the positions of sales engineer for the E.L. Essley Ma- chinery Co., Oakbrook, 111., and as- sistant to the vice president, sales, for National Steel and Shipbuild- ing Company, San Diego. Mr. Hurd holds a B.A. degree from the University of North Carolina at Chapel Hill, and an MBA degree from National Uni- versity, San Diego. He is an af- filiate of The Society of Naval Architects and Marine Engineers and a member of The Propeller Club, Port of San Diego, and the Navy League of San Diego. South- west Marine, Inc.'s address is: Foot of "G" Street (P.O. Box 1070), Chula Vista, Calif. 92012. Revolving discs vs. solid wedge gate in marine service American-Darling Revolving Discs features: 1. No pockets on discs to collect deposits. 2. Discs contact seats during travel to remove deposits. 3. Discs revolve with a self-cleaning action to prevent fouling on body guides. 4. Wedging action is independent of seating action for easier operation. 5. Internal parts are interchangeable and reversible for easy maintenance. Consider these possible disadvantages of the solid wedge gate design: 1. Wedge guides in body are subject to fouling and wear due to line content deposits. 2. Buildup on seat surfaces are trapped at seating position causing leakage. 3. Since wedging and seating occur simultaneously, approximately 50% more operating force is required than for Revolving Discs design. 4. Wedge is not usually interchangeable from valve to valve. Reseating requires fitting of wedge to body seats. On your next installation, get all the advantages. Specify American-Darling Revolving Discs gate valves. For more information, write for our bulletin. 30 Maritime Reporter/Engineering News
