Method of forming a frit seal between a stem and a neck of a cat

Details Method of forming a frit seal between a stem and a neck of a cat Method of forming a frit seal between a stem and a neck of a cat

1998-07-22

2000-10-31

Patel, Nimeshkumar D.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 45, 445 67, H01J 912, H01J 926, H01J 906, H01J 910, H01J 916

Patent

active

061393886

ABSTRACT:
A method of manufacturing a cathode ray tube comprising the steps of providing a stem with a flange having an outer diameter larger than an inner diameter of a bottom end of a neck and smaller than or identical with an outer diameter of the bottom end of the neck, applying a liquefied frit glass onto an upper portion of the flange, hardening the liquefied frit glass applied on the upper portion of the flange, mounting an electron gun onto the stem, fitting the stem into the inside of the neck such that the upper portion of the flange applied with the frit glass contacts a bottom end of the neck, and providing a frit seal between the upper portion of the flange and the bottom end of the neck by heat-treating the frit glass between them.

REFERENCES:
patent: 4066310 (1978-01-01), Palac
patent: 4608516 (1986-08-01), Oki
patent: 5818155 (1998-10-01), Kawamura et al.
patent: 5898264 (1999-04-01), Nose et al.

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