Fluorescent luminous tube having specific support structure...

Details Fluorescent luminous tube having specific support structure... Fluorescent luminous tube having specific support structure...

2005-02-15

2005-02-15

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

C313S272000, C313S271000, C313S496000, C313S497000

Reexamination Certificate

active

06856085

ABSTRACT:
A fluorescent luminous tube includes a vacuumed envelope having two base members, an anode and a cathode installed inside the vacuumed envelope, a first and a second metal layer formed on one of the two base members, a wire shaped member mounted inside the vacuumed envelope, and a first and a second spacer, made of a metal, for supporting the wire shaped member at a predetermined height. One end portion of the wire shaped member is wound around the first spacer to be supported at the predetermined height and is interposed between the first spacer and the first metal layer to be fixed thereto. Further, the other end portion of the wire shaped member is supported at the predetermined height by the second spacer and is fixed to the second metal.

REFERENCES:
patent: 4788472 (1988-11-01), Katakami
patent: 4982134 (1991-01-01), Aono et al.
patent: 6717350 (2004-04-01), Yonezawa et al.

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