Filament support for tubular lamp

Details Filament support for tubular lamp Filament support for tubular lamp

1980-07-02

1982-11-16

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

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

For filament

313278, 313279, H01J 196, H01J 1950, H01K 118

Patent

active

043596657

ABSTRACT:
A wire support for the coiled-coil filament of a tubular double-ended incandescent lamp in which the support is formed of a single wire which extends longitudinally along a portion of the inner wall of the lamp envelope, with each end of the support wire terminating in a loop of a size to be circumferentially engageable with the inner wall of the envelope, and a midportion of the support wire extending laterally in closed loop form to firmly embrace a localized point on a turn of the filament so that the turn extends through that midportion loop and is supported therefrom.

REFERENCES:
patent: 3173051 (1965-03-01), Berlinghof et al.
patent: 3335312 (1967-08-01), Cardwell, Jr.
patent: 3634722 (1972-01-01), Palmer et al.
patent: 3678319 (1972-07-01), Notelteirs et al.
patent: 3736455 (1973-05-01), Notelteirs et al.
patent: 3780333 (1973-12-01), Flynn
patent: 4208606 (1980-06-01), Newton

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