Incandescent lamp having increased life

Details Incandescent lamp having increased life Incandescent lamp having increased life

1974-01-10

1976-03-02

Bauer, Edward S.

Electric lamp and discharge devices

Incandescent lamps

313344, H01K 114

Patent

active

039420639

ABSTRACT:
The invention relates to a normal incandescent lamp having a coiled filament throughout its length, whose secondary winding in a turn near the ends of the filament secured to the current supply wires exhibits a larger pitch than the winding of the central part of the filament.

REFERENCES:
patent: 1998958 (1935-04-01), Flaws, Jr.
patent: 2084999 (1937-06-01), Birdseye
patent: 2424518 (1947-07-01), Stuart
patent: 2479193 (1949-08-01), Zabel

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