Method of evacuating a fluorescent lamp bulb

Details Method of evacuating a fluorescent lamp bulb Method of evacuating a fluorescent lamp bulb

1980-01-30

1981-12-01

McGlynn, Joseph H.

H01J 9395

Patent

active

043032907

ABSTRACT:
A fluorescent lamp bulb is first decompressed to a pressure level higher than a prescribed final seal pressure, and a desired gas is introduced into the bulb and is expelled, while maintaining the intrabulb pressure at a level attained in the first decompression step. Then the intrabulb pressure is reduced from the maintained pressure level to the prescribed final seal pressure.

REFERENCES:
patent: 1602634 (1926-10-01), Anderson
patent: 4005324 (1977-01-01), Delenga
patent: 4132459 (1979-01-01), Lerner

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