Incandescent lamp having an illuminant that contains a...

Details Incandescent lamp having an illuminant that contains a... Incandescent lamp having an illuminant that contains a...

2011-03-22

2011-03-22

Ton, Toan (Department: 2889)

Electric lamp and discharge devices

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

For filament

Reexamination Certificate

active

07911121

ABSTRACT:
The invention relates to an incandescent lamp (1) which is provided with an illuminant (7) which is inserted in a bulb (2) together with a filling in a vacuum-tight manner, the illuminant (7) comprising a metal carbide that has a melting point above that of tungsten. The bulb also comprises a source and a sink for a material of which the illuminant is depleted during use.

REFERENCES:
patent: 3237284 (1966-03-01), Bird
patent: 3277330 (1966-10-01), Cooper, Jr.
patent: 3311777 (1967-03-01), Schroder
patent: 3405328 (1968-10-01), Johansen et al.
patent: 3717784 (1973-02-01), Matheson
patent: 4450381 (1984-05-01), Kendrick et al.
patent: 2005/0023985 (2005-02-01), Arnold
patent: 2006/0103305 (2006-05-01), Bunk et al.
patent: 103 56 651 (2005-06-01), None
patent: 08283 (1909-08-01), None
patent: WO 01/15206 (2001-03-01), None
patent: WO 03/075315 (2003-09-01), None
patent: WO 2005/055274 (2005-06-01), None
English Translation of DE 103 56 651 A1.

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