Encapsulated explosion-proof pilot light

Details Encapsulated explosion-proof pilot light Encapsulated explosion-proof pilot light

1996-08-06

1998-10-13

Shingleton, Michael

Electric lamp and discharge devices: systems

Combined load device or load device temperature modifying...

Discharge device load

315 71, 362800, H01J 744

Patent

active

058216952

ABSTRACT:
A housing having a cavity is in sealing engagement with a glass jewel which also contains a cavity; these two cavities cooperate to form a closed chamber. A frame supporting terminal plates is mounted within the chamber. The frame also mounts a circuit board which in turn mounts a plurality of LEDs. An encapsulating material fills all of the spaces within the chamber.

REFERENCES:
patent: 4152624 (1979-05-01), Knaebel
patent: 4712163 (1987-12-01), Oxley
patent: 4725759 (1988-02-01), Tachikawa
patent: 4727289 (1988-02-01), Uchida
patent: 4939426 (1990-07-01), Menard et al.
patent: 5113329 (1992-05-01), Lin
patent: 5278734 (1994-01-01), Ferber
Sylgard 184 Silicone Elastomer, Base & Curling Agent, Information Brochure, 1991 Dow Corning Corporation.
Hubbell Killark Catalog; p. 27, Stahl Pilot Light, including sketch dated at least a year before the invention thereof by applicant.

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