Patents by Inventor Steffen Richter Nielsen

Steffen Richter Nielsen 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).

  • Impeller for an axial flow fan and a method of mounting a blade on a hub for such fan
    Patent number: 6736601
    Abstract: An impeller (1) for an axial flow fan comprises a hub (2) supporting the blades (3). The hub (2) has bores (5) in its peripheral surface, whereby each bore (5) has a first radially inner section (10) with larger diameter than a second radially outer section (6). Each blade (3) has a substantially circular foot section (4) allowing adjustment of the blade pitch. Mach blade foot section (4) is mounted in a corresponding bore (5) by means of two connecting plates (8, 9) which in the first bore section (10) are spaced apart and face each other along substantially the entire diameter of the bore (5).
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: May 18, 2004
    Assignee: Howden Power A/S
    Inventors: Steffen Richter Nielsen, Bent Bergmann Hansen
  • Impeller for an axial flow fan and a method of mounting a blade on a hub for such fan
    Publication number: 20040009067
    Abstract: An impeller (1) for an axial flow fan comprises a hub (2) supporting the blades (3). The hub (2) has bores (5) in its peripheral surface, whereby each bore (5) has a first radially inner section (10) with larger diameter than a second radially outer section (6). Each blade (3) has a substantially circular foot section (4) allowing adjustment of the blade pitch. Each blade foot section (4) is mounted in a corresponding bore (5) by means of two connecting plates (8, 9) which in the first bore section (10) are spaced apart and face each other along substantially the entire diameter of the bore (5).
    Type: Application
    Filed: October 17, 2002
    Publication date: January 15, 2004
    Inventors: Steffen Richter Nielsen, Bent Bergmann Hansen