Electric incandescent lamp

Details Electric incandescent lamp Electric incandescent lamp

1975-03-19

1976-02-24

Rolinec, R. V.

Electric lamp and discharge devices

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

For plural electrodes of discharge device

313271, 313274, 313279, H01K 118

Patent

active

039406504

ABSTRACT:
The invention relates to an electric incandescent lamp having a tubular envelope in which a coiled-coil filament is stretched which is supported in at least one place between the ends by a support formed from wire, of which support a part bears on the inner wall of the envelope and another part supports the filament, The part which supports the filament has a helical shape and, according to the invention, is present inside the secondary winding of the filament. The said part comprises at least two turns the winding sense of which corresponds to that of the secondary turns of the filament.

REFERENCES:
patent: 3831053 (1974-08-01), Holcomb et al.

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