Line Fast Corporation, Holbrook, N.Y., designers and manufacturers of container securing and handling equipment, has announced the appointment of Capt. Joseph M. Culbert Jr. as manager of its Gulf Coast operations. He will be responsible for the coordination of all sales in the Gulf Coast area. Captain Culbert will be located c/o J.S. Sareussen Marine Supply, 870 South Peters Street, New Orleans, La. 70130.