Patents Assigned to Christian Engineering
  • Apparatus for continuously mixing and electrically heating flowable materials conveyed by a pair of rotatable screws
    Patent number: 5417492
    Abstract: An apparatus for continuously mixing and heating flowable materials comprises an inclined housing, at least two rotatable screws within the housing with each screw having a rotatably mounted shaft and a screw flight. The screws are arranged in parallel juxtaposition with their respective flights of opposite hand intermeshing. The shafts are driven in opposite rotation to each other and each shaft is hollow and is provided with electric heaters within the shaft for heating the flowable material.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: May 23, 1995
    Assignee: Christian Engineering
    Inventors: Robert F. Christian, Emil Z. Barish, Mikhail D. Mazur, Manuel M. Almojuela, Noland F. Nicdao