Patents by Inventor Niels Alexander Rozendaal

Niels Alexander Rozendaal 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).

  • Device for cleaning the fire tubes in a boiler
    Patent number: 7765960
    Abstract: A device for use when cleaning the heating surface of a tube changer, such as the fire tubes in a boiler, having a scraper member that is fixed to a movement member for moving the scraper member through one fire tube at a time and a guide for positioning the scraper member directly in front of the open end of a fire tube, such that said scraper member can be moved from the guide into the fire tube and conversely from the fire tube into the guide. The guide can be moved on a frame transversely with respect to the longitudinal direction of the fire tubes for automatic cleaning of the fire tubes both when in service and out of service.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: August 3, 2010
    Assignee: SIF Ventures B.V.
    Inventor: Niels Alexander Rozendaal