Implosion protected crt

Details Implosion protected crt Implosion protected crt

H - Electricity

01

J

313/35.5

H01J 29/87 (2006.01)

Patent

CA 1125350

RCA 72,158 IMPLOSION PROTECTED CRT ABSTRACT An implosion-protection system for a CRT (cathode-ray tube) having an envelope including a glass faceplate panel and an adjoining glass funnel sealed to the panel, comprises an elastomeric film coating consisting essentially of polyurethane around and adhered to the panel, and a continuous metal reinforcing structure around the panel and adhered to the film coating. The metal structure is preferably adhered to the polyurethane film coating with a cured epoxy or polyester adhesive, to provide additional strength. Additionally, the glass funnel may include integral means, such as surface abrasions or molded valleys and ridges, to facilitate the fracture thereof into small fragments upon implosion.

317438

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