H - Electricity
01
K
H01K 1/18 (2006.01) H01K 1/14 (2006.01) H01K 1/24 (2006.01)
Patent
CA 2268702
An incandescent lamp element comprises an envelope and a filament (10) supported therein by a plurality of spaced supports. The filament comprises a helical coil of wire with sections (20, 21) having at least two different pitches. The first sections (20) have a pitch which enables the filament to be operated at a required colour temperature, and the second sections have a pitch which enables the filament to be supported by the supports.
Decort Francis Gerard
Grazier Paul Anthony
Hurst Derek Peter
Mistry Kantilal Dhanjibhai
Perrin Anthony John
Company General Electric
Craig Wilson And Company
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