Patent ID: 9033756
Filing Date: 2015-05-19
Classification: H01J

Abstract:
1. A method of internally distributing Hg in a fluorescent tube body in a vertical pumping device, comprising: providing a bottom by closing the downward facing end of the fluorescent tube body; arranging, in a first position, at least one first solid body comprising a predetermined first amount of bound Hg to be able to achieve a first release of the first amount of Hg in the fluorescent tube body by gasification; arranging, in a second position, at least one second solid body comprising a predetermined second amount of bound Hg to be able to achieve a second release of the second amount of Hg in the fluorescent tube body by gasification; achieving the said first release of the first amount of Hg with heat and under pressure attained in the fluorescent tube body for purification; achieving the said second release of the second amount of Hg with heat and under pressure attained for the occluded mercury vapour of the fluorescent tube body; and releasing the fluorescent tube body from the vertical pumping device, wherein, in the first position, the first solid body is dropped down manually to the bottom before a valve unit is applied connecting to the fluorescent tube body, the valve unit being arranged in such a manner as to be openable so that, in the second position, the second solid body can drop down into the fluorescent tube body by gravity.