Apparatus providing a shatter-resistant electric lamp

Details Apparatus providing a shatter-resistant electric lamp Apparatus providing a shatter-resistant electric lamp

1991-09-05

1992-04-28

Yusko, Donald J.

Electric lamp and discharge devices

With envelope

313578, 313580, 428407, H01J 508, H01K 132

Patent

active

051091801

ABSTRACT:
A shatter-resistant electric lamp includes a base; contacts for connecting the lamp to a source of electrical energy; a filament or light source electrically connected to the contacts for converting electrical energy to light; a shatterable encasement, connectable to the base, for translucently encasing the filament; and a polymer coating deposited on a first portion of the encasement so that a second portion of the encasement remains uncoated. The preferred polymer coating is poly(phenylene sulfide).

REFERENCES:
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patent: 4030904 (1977-06-01), Battye et al.
patent: 4041344 (1977-08-01), La Giusa
patent: 4053675 (1977-10-01), Blackwell
patent: 4104555 (1978-08-01), Fleming
patent: 4169181 (1979-09-01), Molari, Jr.
patent: 4459506 (1984-07-01), Beck
patent: 4482942 (1984-11-01), Blaisdell et al.
patent: 4555748 (1985-11-01), Bradley
patent: 4569006 (1986-02-01), Bergin et al.
Advertisement from Feb. 1986 issue of Industrial Engineering News.

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