Integral mercury-vapor pressure regulating means for fluorescent

Electric lamp and discharge devices – Liquid electrode discharge devices – Auxiliary starting or holding electrode

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

313178, 313225, 313228, 315108, H01J 6120, H01J 6128, H01J 6135, H01J 6172

Patent

active

040203786

ABSTRACT:
The mercury-vapor pressure within a fluorescent lamp is controlled by a metal (indium or an alloy of indium and tin, for example) that wets glass, combines with the mercury within the lamp to form an amalgam and is divided into segments which are fused directly to one or both of the glass stems at spaced locations. The amalgamative-metal segments are of such shape and mass that they inherently remain in place on the stem when they are heat-softened and pressed onto the glass surface. Segments of larger size and mass are retained in place by an overlying porous layer of inert material that adheres to the glass or by an embedded wire mesh member and an exterior porous coating of inert material. The amalgamative metal can also be combined with a fusible binder to form a composite which is divided into small pellets that are pressed onto the glass stem and held in place by the adhesive action of the binder when the latter is fused during the bulb-lehring operation required to fabricate the lamp.

REFERENCES:
patent: 2262177 (1941-11-01), Germer
patent: 2280618 (1942-04-01), Besson
patent: 3336502 (1967-08-01), Gilliatt

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Integral mercury-vapor pressure regulating means for fluorescent does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integral mercury-vapor pressure regulating means for fluorescent, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integral mercury-vapor pressure regulating means for fluorescent will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2089452

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.