Method of manufacturing a single-ended incandescent lamp

Details Method of manufacturing a single-ended incandescent lamp Method of manufacturing a single-ended incandescent lamp

1993-09-14

1995-01-10

Bradley, P. Austin

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 48, H01J 912, H01J 902

Patent

active

053802306

ABSTRACT:
An incandescent lamp having a filament with an integral support portion between its ends which bears against the lamp envelope for supporting the filament therein is produced. The integral support portion includes a length of electrically conductive support wire enclosed within the filament, the filament being continuously coiled over the entire length of said support wire. Accordingly to a favorable embodiment, the support wire is a retained length of winding mandrel.

REFERENCES:
patent: 2067746 (1937-01-01), Zabel
patent: 2359302 (1944-10-01), Curtis
patent: 3600053 (1971-08-01), Smith

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