Moisture resistant lighting tube

Details Moisture resistant lighting tube Moisture resistant lighting tube

1987-05-11

1989-07-25

Lazarus, Ira S.

Illumination

Light source and modifier

With sealing means or artificial atmosphere

362236, F21V 2900

Patent

active

048519723

ABSTRACT:
A moisture resistant lighting tube comprising a flexible, transparent tube of plastic polymeric material housing miniature lamps within the tube interior. Electrical connectors are encased in a hardened thermoplastic potting compound at each end of the tube. The hardened potting compound serves as a dust barrier and strain relief. Moisture free gas such as dried nitrogen is injected in the tube interior under pressure via an opening in the tube wall. The gas displaces moisture laden air within the tube. The air is expelled via another opening in the tube wall. Sealant compound is injected in both wall openings to form sealant plugs which seal the openings from the tube interior, trap the moisture free gas in the tube interior and prevent moisture from entering therein.

REFERENCES:
patent: 459872 (1891-09-01), Tommasi
patent: 3714414 (1973-01-01), Sternius
patent: 4271458 (1981-06-01), George, Jr.
patent: 4376966 (1983-03-01), Tieszen
patent: 4500946 (1985-02-01), Mikola
patent: 4521839 (1985-06-01), Cook et al.
patent: 4574337 (1986-03-01), Poppenheimer
patent: 4612607 (1986-09-01), Segoshi et al.

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