Electrostatic coating of silica powders on incandescent bulbs

Details Electrostatic coating of silica powders on incandescent bulbs Electrostatic coating of silica powders on incandescent bulbs

1975-11-20

1978-03-28

Padgett, Benjamin R.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Light diffusing

252518, 252521, 427106, 423335, H01K 132

Patent

active

040817091

ABSTRACT:
An improved electrostatically deposited coating is obtained by controlling the particle size and resistivity of the silica powder.

REFERENCES:
patent: 2661438 (1953-12-01), Shand
patent: 2806444 (1957-09-01), Werner et al.
patent: 2878136 (1959-03-01), Gustin
patent: 2922065 (1960-01-01), Meister et al.
patent: 3126300 (1964-03-01), Bienefelt et al.
patent: 3320460 (1967-05-01), Bouchard et al.
patent: 3909649 (1975-09-01), Arsena

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