Patents Assigned to AVS Ing. J.C. Romer GmbH
  • Membrane valve for fluids
    Patent number: 4925153
    Abstract: A tubular membrane-tight flow valve features a waisted support body for the membrane which seals against an annular sealing surface at the waist of the support body. This special shape of the support body is effective in avoiding closing hammer. In the preferred embodiment the membrane is made fractionally longer than the waisted support body and this results in extremely quiet operation of the valve.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: May 15, 1990
    Assignee: AVS Ing. J.C. Romer GmbH
    Inventor: Joachim C. Romer