Patents Assigned to Friedrich W. Schwing, GmbH
  • Control valve for viscous material pumps
    Patent number: 4392510
    Abstract: A control valve for viscous material pumps has a valve plate reciprocally movable in a flat housing divided in half to control the flow channels of the valve. The plate is movable in a wear shell inlaid in the housing and having covering rings along the flow channels.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: July 12, 1983
    Assignee: Friedrich W. Schwing, GmbH
    Inventors: Horst Heckmann, Werner Nawroth