Sealed effusive structure for use in a cathode ray tube

Details Sealed effusive structure for use in a cathode ray tube Sealed effusive structure for use in a cathode ray tube

1978-12-22

1980-09-09

Demeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Envelope

313174, H01J 1970

Patent

active

042219914

ABSTRACT:
The invention provides a sealed effusive material structure for angular orientation within a cathode ray tube. The effusive material, which is disposed in an annular channelized container, is protectively sealed by a metallic covering that melts at a temperature above that encountered during panel-funnel sealing, and below that used for activation of the effusive material. Receptacle means integral with the container is provided to collect and retain the gravity flow of the melted covering material.

REFERENCES:
patent: 2536879 (1951-01-01), Gabrielli
patent: 3979633 (1976-09-01), Davis et al.
patent: 4029987 (1977-06-01), Zuccinelli

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