Patents by Inventor Niels E. Sevelsted

Niels E. Sevelsted 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).

  • HYDRAULIC MACHINE
    Publication number: 20100028186
    Abstract: A hydraulic machine is disclosed with an externally toothed gear wheel (3) and an internally toothed ring, the gear wheel (3) and the ring together forming pressure pockets, which expand and compress during operation, the gear wheel (3) having recesses (22-25), which form part of a secondary control system. The machine should be designed to operate in a simple manner with little wear. To achieve this, the gear wheel (3) is made as a sintered element, in which the recesses (22-25) are sintered.
    Type: Application
    Filed: October 4, 2007
    Publication date: February 4, 2010
    Applicant: SAUER-DANFOSS APS
    Inventors: Niels E. Sevelsted, Hans Christian Petersen
  • HYDRAULIC MACHINE
    Publication number: 20080240966
    Abstract: The invention concerns a hydraulic machine (1) with an externally toothed gear wheel (2) and an internally toothed ring (3), which is made of a sintered material or of a ceramic material. It is endeavored to provide good operation behaviour at low costs. For this purpose, the toothed ring (3) is provided with a sealing element (7) in the area of its outer circumference.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 2, 2008
    Applicant: Sauer-Danfoss ApS
    Inventors: Niels E. Sevelsted, Hans Christian Petersen, Claus Jesper Johansen