Light bulb

Details Light bulb Light bulb

1987-07-06

1988-08-16

Ramsey, Kenneth J.

Electric lamp and discharge devices

With gas or vapor

Incandescent filament lamp

313634, 313636, 313112, 445 27, H01K 128, H01K 136

Patent

active

047647078

ABSTRACT:
A light bulb body which may be blow molded from transparent or translucent polymer resin. The resin for instance, polypropylene may be blended with fillers and fire-proof agents such as glass fiber, glass microparticles and nylon fiber. The molded light bulb is hermetically joined with the lamp stem, filled with an inert gas and is installed with the screw lamp base. The "not-easy breakable" feature the said composite bulb body and the phenomena of color pigmentation, light refraction, total reflection and diffusion properties of the bulb material itself, thereby avoids the defects such as stereotype nature of a single material and vulnerability of the traditional glass bulbs.

REFERENCES:
patent: 2969479 (1961-01-01), Lawson
patent: 3026436 (1962-03-01), Hughes
patent: 4428039 (1984-01-01), Guimond et al.

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