Patents Assigned to Eden Research Laboratories, Inc.
  • Continuous freeze drying
    Patent number: 4590684
    Abstract: Apparatus and method for continuous freeze drying in which a slurry of material to be freeze dried is provided. The slurry is advanced along a predetermined path having a freezing area in which one or more plugs of frozen slurry are provided to afford a pressure drop. Heat is applied to the frozen slurry as it exits into an area of reduced pressure. The heat and reduced pressure cause the frozen slurry to sublime.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: May 27, 1986
    Assignee: Eden Research Laboratories, Inc.
    Inventor: Harold B. Arsem