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US 4,858,016 AGranted
Cathode ray tube having an improved implosion proof structure
AssigneeSony Corporation
InventorsTsutomu Suehiro, Hitoshi Uchiyama, Takahito Inukai, Tsunenari Saito
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Abstract
A cathode ray tube having a tube envelope, an anti-explosion band wrapped around the tube envelope, the band having parallel upper and lower arm portions and parallel left and right arm portions, rear extension portions extending rearwardly from the upper and lower arm portions, and degaussing coils secured to the rear extension portions. The structure is such that an external magnetic shield member used in the prior art can be omitted so that the manufacturing process for the cathode ray tube is simplified and the manufacturing cost is reduced.
Claims8
A cathode ray tube comprising:
- a tube envelope,
- an anti-explosion band wrapped around said tube envelope and having parallel upper and lower arm portions and parallel left and right arm portions,
- rear extension portions extending rearwardly from said band at said upper and lower arm portions, and
- degaussing coils secured to said rear extension portions.
1 more element
Dependencies are inferred from the claim text.