Patents by Inventor Gerrit den Hoedt

Gerrit den Hoedt 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).

  • Patent number: 4421439
    Abstract: The invention relates to a supporting fabric having a width of at least 30 cm, and preferably more than 2-5 m, and containing warp and weft yarns of a synthetic material, for bearing one or more layers of sand, gravel, stones, clay, loam or similar bulk or other material to a height of at least 10 cm, which height is in actual practice often 5-15 m. The yarns extending in the warp direction of the fabric are formed by straight warp yarns and binder warp yarns, the straight warp yarns each having a higher strength than the binder warp yarns.The invention also comprises a method for building a road embankment, a dike, a dam, or some other structure formed from bulk material, such as, for instance, sand, gravel or stones. In such a structure, one or more layers of supporting fabric are incorporated.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: December 20, 1983
    Assignee: Akzona Incorporated
    Inventors: Antonius W. M. ter Burg, Gerrit den Hoedt