Patents Assigned to Roediger Vakuum- und Maustechnik GmbH
  • Interface valve for vacuum sewer systems
    Patent number: 6575425
    Abstract: A pinch-type interface valve for vacuum sewer systems. The interface valve includes a valve chamber and therein a tube-like elastic element. The elastic element has a lateral seal section with seal strips. The seal strips are pressed against each other and tightened when the elastic element is axially compressed. The elastic element is expanded and the seal strips are pulled from each other when vacuum is transmitted into the valve chamber.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: June 10, 2003
    Assignee: Roediger Vakuum- und Maustechnik GmbH
    Inventor: Reinhold Betz