Ceramic lamp seal and control of sealing frit distribution

Details Ceramic lamp seal and control of sealing frit distribution Ceramic lamp seal and control of sealing frit distribution

1975-12-15

1977-07-05

Rolinec, Rudolph V.

Electric lamp and discharge devices

With support and/or spacing structure for electrode and/or...

For plural electrodes of discharge device

313220, 174 5061, H01J 1704, H01J 1716

Patent

active

040342522

ABSTRACT:
A metal vapor arc lamp comprises an alumina ceramic arc tube having an end closed by an apertured ceramic plug sealed by sealing frit. A metal lead wire extending through the aperture is also sealed therein by sealing frit and supports an electrode within the arc tube. A cross wire attached to the inlead immediately above the plug forms a wick equalizing the distribution of sealing frit between the plug seal and the inlead seal and also serves as a hanger for supporting the plug and electrode assembly in the arc tube during sealing.

REFERENCES:
patent: 3363133 (1968-01-01), Harris et al.
patent: 3609437 (1971-09-01), Tol
patent: 3882346 (1973-05-01), McVey
patent: 3886392 (1975-05-01), Barakitis et al.

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