SLURRY PROCESS FOR COATING PARTICLES UPON THE VIEWING-WINDOW SURFACE OF A CATHODE-RAY TUBE

摘要

METHOD FOR COATING PARTICULATE MATERIAL UPON A VIEWING-WINDOW SURFACE OF A CATHODE-RAY TUBE The method comprises heating the viewing window of a cathode-ray tube to temperatures above 35.degree.C, dispensing from a storage container onto a surface of the window a quantity of slurry comprised of particulate material mixed with a liquid vehicle, the quantity of slurry being in excess of that required to coat the surface, spreading the quantity of slurry over the surface whereby the slurry is heated thereby; collecting the excess slurry from the surface and returning it to the storage container, and removing the heat transferred to the excess slurry from the window.