Patents by Inventor Johannes Antonius Van Seumeren

Johannes Antonius Van Seumeren 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).

  • Method for using a revolver crane, and a revolver crane
    Patent number: 6508372
    Abstract: A method for using a revolver crane, comprising the positioning of a ballast on a platform ring in accordance with the repositioning of a load which is supported by a boom, is repositioned in relation to the platform ring as well, so as to cause a balance of moments. A revolver crane for performing this method comprises ballast hoisting elements for hoisting said ballast and repositioning it in relation to the platform ring.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: January 21, 2003
    Assignee: Mammoet Holding B.V.
    Inventors: Nicolaas Lamphen, Johannes Antonius Van Seumeren