Patents Assigned to Hetzel & Co. Elektronik-Recycling GmbH
  • Patent number: 5636800
    Abstract: There is described a process for the disposal and recycling of resistance (or incandescent) and/or discharge lamps by crushing the lamp bodies and separating the glass, metal, heavy metal and, if appropriate, fluorescent components of the lamps by crushing the lamp bodies by means of a squeezing device whose effective distance can be adjusted in such a way that no separation of the base glass and the lamp base will be effected. Another subject-matter of the invention is a squeezing device for carrying out the process, comprising a double-belt press with an adjustable distance between the upper and the lower belt.
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: June 10, 1997
    Assignee: Hetzel & Co. Elektronik-Recycling GmbH
    Inventor: Jurgen Wolf
  • Patent number: 5352142
    Abstract: Picture tubes are reprocessed by heating the picture tube to at least the fusing temperature of the solder at the joint and separating the screen and the cone under the influence of gravity. This method effects a clean separation of the screen and the cone by slowly heating the aerated picture tube which is arranged, during heating, in such a way that the joint between the screen and the cone is inclined with respect to the horizontal, and displacing the screen and the cone in opposite directions.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: October 4, 1994
    Assignee: Hetzel & Co. Elektronik-Recycling GmbH
    Inventor: Jurgen Wolf