Method of introducing sodium amalgam into lamps and lamp contain

Details Method of introducing sodium amalgam into lamps and lamp contain Method of introducing sodium amalgam into lamps and lamp contain

1983-03-17

1984-05-22

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Generating gas or vapor within an envelope, or coating by...

445 22, 445 57, H01J 9395

Patent

active

044499485

ABSTRACT:
Substantially pure, free flowing, sodium amalgam particles of predetermined composition and controlled particle size are prepared for use as vaporizable fill for high pressure discharge lamp devices, whereby accurately measurable quantities of the sodium amalgam may be introduced into the lamp devices. A process for producing the substantially pure amalgam particles of accurately controlled size includes heating a mixture of sodium and mercury to form a melt, passing the melt through a vibrating discharge nozzle and subjecting the droplets so formed to an inert cooling fluid maintained at a temperature below the solidification point of the amalgam. An apparatus for producing the amalgam particles comprises a vessel to contain an alkali metal amalgam melt, a vibrating discharge nozzle adapted to form the melt into uniformly sized droplets, and a column of inert cooling fluid maintained at a low temperature at which the melt droplets are solidified.

REFERENCES:
patent: 3676534 (1972-07-01), Anderson
patent: 3898504 (1975-08-01), Akutsu et al.
patent: 3906272 (1975-09-01), Collins et al.
patent: 3974410 (1976-08-01), Collins et al.
patent: 4253037 (1981-02-01), Driessen et al.

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