Method of forming arc tube end seal

Details Method of forming arc tube end seal Method of forming arc tube end seal

1978-02-08

1979-07-24

Fisher, Richard V.

Glass manufacturing

Processes

Fusion bonding of glass to a formed part

65 43, 65 59R, 65 59B, 65 32, C03B 2320, C03C 2702

Patent

active

041621514

ABSTRACT:
An improved arc tube end seal and the method of forming that seal in a high pressure sodium discharge lamp is disclosed. The method includes precoating the refractory metal end cap with a slurry of metallic silicon and baking the end cap prior to accomplishing the bonding of the end cap to the arc tube with a conventional sealing frit.

REFERENCES:
patent: 3243635 (1966-03-01), Louden et al.
patent: 3281309 (1966-10-01), Ross
patent: 3469729 (1969-09-01), Grekila et al.
patent: 3479170 (1969-11-01), Louden
patent: 3737977 (1973-06-01), Jorgensen
patent: 3833348 (1974-09-01), Stokes et al.
patent: 4004173 (1977-01-01), Rigden
patent: 4050956 (1977-09-01), DeBruin et al.

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