Electric incandescent lamp having an improved filament support

Details Electric incandescent lamp having an improved filament support Electric incandescent lamp having an improved filament support

1996-09-03

1998-10-13

Noori, Max H.

Electric lamp and discharge devices

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

For filament

313273, 313579, H01K 118

Patent

active

058216782

ABSTRACT:
An electric incandescent lamp has a filament having two incandescent portions interconnected by an intermediate non-lightemitting conductor. The filament is accommodated in a single ended, pinchsealed tubular glass envelope and is supported therein in that the intermediate conductor is embedded in an inner portion of a second pinch seal. The lamp has means to lower the temperature of the intermediate conductor and thereby of the second pinch, if the maximum permissible temperature of the latter would otherwise be exceeded.

REFERENCES:
patent: 2007927 (1935-07-01), Braselton
patent: 3376460 (1968-04-01), Jamson
patent: 4626735 (1986-12-01), Morris et al.
patent: 5140217 (1992-08-01), Rao et al.
patent: 5146134 (1992-09-01), Stadler et al.
patent: 5270609 (1993-12-01), Smith et al.
patent: 5380230 (1995-01-01), Smith et al.

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