Incandescent lamp having an improved arbor

Details Incandescent lamp having an improved arbor Incandescent lamp having an improved arbor

1988-04-28

1990-01-02

Boudreau, Leo H.

Electric lamp and discharge devices

Incandescent lamps

313318, 313317, 313314, 313276, H01B 548

Patent

active

048915432

ABSTRACT:
A rough service incandescent lamp having a flexible arbor comprised of a stainless steel member that joins a glass stem press to a filament mounting structure is disclosed. The stainless member is selected to have a coefficient of expansion that both matches the coefficient of expansion of the glass stem press and of a glass cane member of the filament mounting structure. The stainless steel member allows for simplification of the fabrication process related to forming the rough service incandescent lamp while also improving the shock capability of such a lamp.

REFERENCES:
patent: 1398032 (1921-11-01), Maurer
patent: 1682916 (1923-06-01), Lebby

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