Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium
Patent
1991-12-11
2000-08-08
Patel, Vip
Electric lamp and discharge devices
With luminescent solid or liquid material
With gaseous discharge medium
313623, 313624, 313625, H01J 162
Patent
active
061006343
ABSTRACT:
An arc discharge tube has electrodes supported by hollow electrode support tubes at each end. A slot is formed in the electrode support tube. One edge of the slot is depressed inwardly to form a concave surface. The slot is located adjacent to the end cap of the arc tube and provides access to the interior of the electrode support tube. After the electrode assembly is sealed into one end of the arc tube, amalgam particles are dispensed into the arc tube. The arc tube is agitated rapidly, causing the amalgam particles to pass through the slot and drop into the interior of the electrode support tube. The amalgam particles are isolated from heat during sealing of the other end of the arc tube.
REFERENCES:
patent: 3716744 (1973-02-01), Delembre et al.
patent: 3851207 (1974-11-01), McVey
patent: 4157485 (1979-06-01), Wesselink et al.
patent: 4539508 (1985-09-01), Mulder et al.
patent: 4910430 (1990-03-01), Ito et al.
patent: 4975620 (1990-12-01), Masui et al.
GTE Products Corporation
McNeill William H.
Patel Vip
Romanow Joseph S.
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