The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 1977
Filed:
Oct. 20, 1975
Melvin F Rogers, Western Springs, IL (US);
Zenith Radio Corporation, Glenview, IL (US);
Abstract
This disclosure depicts a novel system for implosion protecting a color television picture tube having a faceplate with a rearwardly extending side surface and a mating funnel. The system is illustrated as comprising, in part, a high tensile strength frame which surrounds and overlies at least a portion of the side surface of the faceplate and which is cemented to the faceplate. The system further comprises a crack retarder which is located about the circumference of the tube, but which is spaced axially rearwardly from the frame. The system assists in retaining in position the shards of a shattered faceplate and also assists in retarding the propagation of cracks in the tube, thereby providing for a relatively gradual buildup of pressure in the tube.