Metal ferrules for hermetically sealing electric lamps

Details Metal ferrules for hermetically sealing electric lamps Metal ferrules for hermetically sealing electric lamps

1991-12-03

1994-02-15

Yusko, Donald J.

Electric lamp and discharge devices

With gas or vapor

Having electrode lead-in or electrode support sealed to...

313 25, 313113, 313634, H01J 1718

Patent

active

052870375

ABSTRACT:
Electric lamps made using nickel-plated, high nickel content iron alloy ferrules wherein the ferrules have been heated above their surface oxidation temperature and then reduced during the lamp-making process have strong bonds between the ferrule and solder using non-corrosive soldering flux, even when using lead-free solder.

REFERENCES:
patent: 2148314 (1939-02-01), Wright
patent: 2597681 (1952-05-01), Smith
patent: 2605436 (1952-07-01), Stone et al.
patent: 4908546 (1990-03-01), Shaffer et al.
patent: 5019743 (1991-05-01), Olwert et al.

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