Electric lamp with bridge support member providing both compress

Details Electric lamp with bridge support member providing both compress Electric lamp with bridge support member providing both compress

1986-10-20

1988-01-19

Moore, David K.

Electric lamp and discharge devices

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

For filament

313273, 313276, 313279, 313579, 313315, H01J 188, H01J 1942

Patent

active

047206535

ABSTRACT:
An electric incandescent lamp (e.g., tungsten-halogen) including a light-transmitting envelope having an internal curvilinear wall, a gas mixture within the envelope, at least two support rods extending within the envelope in a spaced-apart manner, at least one bridge member within the envelope and supported substantially between the two support rods, and an electrically conductive filament structure located within the envelope and suspended from the bridge member. At least one support member, secured to the bridge member and projecting therefrom and including a U-shaped end portion for engaging the curvilinear internal wall of the envelope, is utilized to provide both compressive and axial support for the bridge member and suspended filament structure. The support member is preferably a wireform comprised of molybdenum.

REFERENCES:
patent: 3497752 (1970-02-01), Peterson
patent: 3543962 (1970-12-01), Peterson
patent: 3626236 (1971-12-01), Robinson et al.
patent: 3898505 (1974-02-01), Danko
patent: 3909653 (1975-09-01), Bottone et al.
patent: 4023060 (1977-05-01), Pike et al.
patent: 4366411 (1982-12-01), Robinson

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