Triple walled lamp

Details Triple walled lamp Triple walled lamp

2011-08-30

2011-08-30

Guharay, Karabi (Department: 2889)

Electric lamp and discharge devices

With temperature modifier

Double wall, jacket or casing for envelope

C313S238000, C313S318010, C313S634000

Reexamination Certificate

active

08008844

ABSTRACT:
A lamp in which an inner bulb containing a light emitting tube or a light emitting filament and an outer bulb containing the inner bulb are attached coaxially to a base, and a spacer made of a thin metal sheet is attached to an exhaust tube protruding from a central region at the top end of the inner bulb coaxially supporting the inner bulb to the outer bulb. The spacer has a central plate formed with an aperture allowing the exhaust tube to be inserted through the central plate, and a plurality of fingers protruding inward along the inner periphery of the aperture, and three or more strips, each branched radially outward from the central plate and formed in a curved shape coaxially supporting the inner bulb and the outer bulb.

REFERENCES:
patent: 4825128 (1989-04-01), Sprengers
patent: 5065069 (1991-11-01), Hunter
patent: 5270608 (1993-12-01), Williamson et al.
patent: 5619090 (1997-04-01), Vervecken
patent: 2008/0090483 (2008-04-01), Fridrich
patent: 1983550 (2008-10-01), None
patent: 1318637 (2007-11-01), None
patent: 2007/088729 (2007-08-01), None

Affiliated with

Also associated with

Rating

Triple walled lamp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Triple walled lamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Triple walled lamp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2705355