L-shaped bracket assembly and rimband type implosion-resistant cathode ray tube

In an implosion-resistant cathode ray tube having an evacuated envelope with a face panel sealed to a flared neck portion wherein said flared neck portion has an electron gun assembly sealed therein and said face panel has a substantially rectangular-shaped viewing portion extending to an upturned flanged portion with corners having a given radius of curvature extending into a flattened portion, a pair of rimbands contacting said flanged portion, and a metal band encircling and exerting a compressive force on the rimbands and upturned flanged portion of the face panel the improvement comprising at least one substantially "L"-shaped bracket member having a base portion connected to an upstanding attachment portion with the base portion positionally located and compressively held intermediate said rimbands and said metal band at said corner of said face panel and of a size to provide contact of said encircling metal band and said rimbands at a point on said given radius of curvature of said corner and prior to said flattened portion of said flanged portion of said face panel.