Patents Assigned to 501 Ocean B.V.
  • Anti-fluttering check valve
    Patent number: 4930539
    Abstract: An anti-fluttering valve construction includes a valve member with integral stem received in an oversize cylindrical bore in a guide which can give rise to fluttering of the valve member when it is unseated. To avoid fluttering, the guide at one or both ends of the bore is segmented and a spring surrounds the free ends of the segments to deform them inwardly to define a conically inwardly tapering portion of the bore which makes highly localized contact with the valve stem.
    Type: Grant
    Filed: November 22, 1985
    Date of Patent: June 5, 1990
    Assignee: 501 Ocean B.V.
    Inventor: Jacob van Rooy