Patents Assigned to Firma Kreyenborg Verwaltungen und Beteiligungen KG
  • Filter device for extruders having a screen plunger with longitudinally arranged candle filters
    Patent number: 5578207
    Abstract: The invention relates to a filter device for extruders and injection-molding machines, the screen elements being formed by a candle filter and, if required, by a plurality of candle filters, which are arranged in the circumferential direction on the screen plunger, extending parallel to the longitudinal axis of the screen plunger, and are flowed through from the outside inward for filtering purposes and from the inside outward for backwashing purposes.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: November 26, 1996
    Assignee: Firma Kreyenborg Verwaltungen und Beteiligungen KG
    Inventor: Jan U. Kreyenborg