Manufacture of gas filled envelopes

Details Manufacture of gas filled envelopes Manufacture of gas filled envelopes

1978-10-17

1980-05-27

McQuade, John

29 2513, 294695, H01J 926

Patent

active

042047218

ABSTRACT:
A method of manufacturing a hermetically sealed envelope comprising assembling envelope-forming components of which at least one is a vitreous wall forming component wherein the or each vitreous component is metallized along a zone where it is to be bonded by solder to form a sealing joint. Such sealing is effected while the assembly 13 of envelope-forming components is within a hermetically sealable chamber 1 e.g. using heating devices 11, 12. The chamber may be evacuated via exhaust port 7 and valve 9 and optionally filled with a gas other than air via inlet port 4 and valve 6.

REFERENCES:
patent: 3807833 (1974-04-01), Graham et al.
patent: 3939556 (1976-02-01), Borel et al.
patent: 4029371 (1977-06-01), Kupsky

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