Flashlamp containment coating
AssigneeGTE Products Corporation
InventorsJohn E. Tozier, John W. Shaffer
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Abstract
A process for applying a protective light-transmitting coating to a photoflash lamp comprising the steps of applying the protective coating to the lamp and curing the applied coating by exposure thereof to radiant energy and characterized by the improvement wherein the layer of coating applied to some portions of the photoflash lamp is thicker than the layer of coating applied to other portions of the photoflash lamp.
Claims10
A process for coating a photoflash lamp with a UV-curable resin including the steps of applying varying amounts of UV-curable resin to different portions of the photoflash lamp and curing said UV-curable resin by impingement thereof with energy from a radiant energy source, said process characterized by the improvement wherein a different thickness of said UV-curable coating is applied to different portions of said photoflash lamp by a dip-coating process wherein said photoflash lamp is withdrawn from the coating composition at a non-uniform rate.
In a process for applying a protective light-transmitting coating to the exterior surface of a photoflash lamp which includes the steps of varying the amount of coating applied to the various portions of the lamp and curing the applied protective light-transmitting coating, the improvement wherein dip-coating of the photoflash lamp is utilized to provide a different thickness of coating on different portions of the photoflash lamp by withdrawing said photoflash lamp from the coating composition at a non-uniform rate.
Dependencies are inferred from the claim text.