H - Electricity – 01 – K
Patent
H - Electricity
01
K
313/135
H01K 9/00 (2006.01) H01K 1/26 (2006.01) H01K 1/40 (2006.01)
Patent
CA 1212713
-13- MULTIPLE FILAMENT LAMP ABSTRACT OF THE DISCLOSURE A multi-filament lamp that includes a tubular envelope having a pinch seal at one end thereof and containing therein a halogen atmosphere. At least two coiled turgsten filaments are disposed in the tubular envelope and are supported so as to be oriented parallel to each other in the longitudinal direction of the envelope. Lead-in wires are provided within the envelope and are hermetically sealed using metal foil strips, these being hernletically sealed within the pinch seal. Outer lead-in wires extend from the pinch seal and are each connected to a respective contact pin. A lead-in wire is associated with each filament and a common lead-in wire is also provided. A wire grid extends longitudinally within the envelope substantially in parallel to the filaments and is disposed therebetween so as to isolate one filament from the other and thereby provide filament redundancy.
460379
Fields Larry R.
Kendrick George B.
Gte Products Corporation
R. William Wray & Associates
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