Patent ID: 6425342
Filing Date: 2002-07-30
Classification: G02B

Abstract:
A method for providing a cautionary warning on water-going vessels, the vessels being organized on the water into a towing array of multiple columns of vessels and multiple rows of vessels during floatation of the vessels on the water, the method comprising the step of placing a plurality of removable reflective warning markers at any desired spacing on at least one outer facing side of the array of vessels by removably attaching the reflective warning markers to the vessels on the one outer side of the array of vessels, the warning markers comprising a front, reflective surface and a rear surface, the front reflective surface having a coefficient of retroreflection of at least 10% such that the reflective surface is visible from a direction substantially the same as a direction from which light reaches the reflective surface without the need to supply power to the reflective warning markers, the rear surface comprising an attachment mechanism adapted to removably attach to the surface of the side of the vessel.