Implosion protected color cathode ray tube bulb and bulb compone

Details Implosion protected color cathode ray tube bulb and bulb compone Implosion protected color cathode ray tube bulb and bulb compone

1977-02-28

1979-09-18

Shoap, Allan N.

Receptacles

Envelope for electric lamp or similar device

Tv tube

29446, 220 71, 358247, 427106, 427423, H01J 2987, H01J 6132, H01K 128

Patent

active

041680103

ABSTRACT:
This application depicts a color cathode ray tube bulb and bulb components having a novel protection system, and a method of installation. In one embodiment disclosed, a color CRT bulb comprises a glass faceplate hermetically sealed to a glass funnel along a sealing interface. The bulb is characterized by having a particle-deposited, high tensile strength, form-fitting bondment composed of a material having a high yield strength and Young's modulus. The bondment engirds and is self-adhered to the bulb at or near the sealing interface so as to become one therewith. The bondment is built up to such cross-sectional dimensions as to have sufficient strength and stiffness to provide implosion protection for the bulb by confining and restraining the shards of a fractured bulb. In a preferred execution the bondment applies a compressive pre-load to the bulb. Also depicted are applications of a bondment to funnel and faceplate components before they are assembled into a complete bulb.

REFERENCES:
patent: 819624 (1906-05-01), Wood
patent: 3153839 (1964-10-01), Pakswer
patent: 3162933 (1964-12-01), Trax et al.
patent: 3222206 (1965-12-01), Cornelissen et al.
patent: 3332569 (1967-07-01), Spear
patent: 3403805 (1968-10-01), Powell et al.
patent: 3471317 (1969-10-01), Clock
patent: 3519161 (1970-07-01), Powell et al.
patent: 3725718 (1973-04-01), Quirk et al.
patent: 3996491 (1976-12-01), Larson et al.
patent: 4029898 (1977-06-01), Belentepe

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