Patents Assigned to Ald Vacuum Technologies Aktiengesellschaft
  • Method and apparatus for evaporating components of multiple substance mixtures and multiple substance systems
    Patent number: 6616724
    Abstract: For the evaporation of given components from initial multiple-substance mixtures and systems at subatmospheric pressure, individual portions (P1, P2, P3, P4, P5) of the multiple-substance mixture and systems are placed in ring crucibles (17) stacked at several levels. Vapors of the lower-boiling component are drawn off through a vapor exhaust opening in each crucible, while the top ring crucible (17) is closed except for its vapor exhaust opening.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: September 9, 2003
    Assignee: Ald Vacuum Technologies Aktiengesellschaft
    Inventors: Manfred Raschke, Wilfried Goy, Franz Hugo, Erwin Wanetzky, Albrecht Melber