Multiple pinch incandescent lamp with alternate coiled and...

Details Multiple pinch incandescent lamp with alternate coiled and... Multiple pinch incandescent lamp with alternate coiled and...

H - Electricity

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H01K 1/50 (2006.01) H01K 1/14 (2006.01) H01K 1/28 (2006.01) H01K 5/02 (2006.01) H01K 7/00 (2006.01)

Patent

CA 1060528

ABSTRACT OF THE DISCLOSURE An incandescent lamp such as a tungsten filament lamp in which the filament is a series of alternate active coil sections and inactive straight sections. The surroun- ding glass envelope is correspondingly drawn down around the straight sections to reduce the volume of the envelope and to provide mechanical support for the filament.

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