Patents by Inventor Wouter A. G. Franken

Wouter A. G. Franken has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Seal for a rotatable pipe coupling
    Patent number: 4741541
    Abstract: Seal for a rotatable pipe coupling of large dimensions such as the swivel of a mooring device, comprising a sealing ring (30) of substantially rectangular cross-section (31) place in a rectangular groove (29) which bridges the gap (27) to be sealed, the sealing ring (30) being placed in the groove (29) in a manner such that it can expand or contract by temperature variations inside the groove (29). This can be achieved by providing radial clearance (34) between the inner face of the ring (30) and the opposite wall (28) of the (29) and/or clearance (35) between the ring (30) and the outer wall of the groove.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: May 3, 1988
    Assignee: Single Buoy Moorings Inc.
    Inventor: Wouter A. G. Franken