Patents by Inventor Eric A. Hedberg

Eric A. Hedberg 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: 5331849
    Abstract: The present invention relates to a air data sensing probe that has a cylindrical barrel joined to a contoured strut section. The strut has leading and trailing edges formed along curved paths, and supports the cylindrical barrel at a position spaced from a mounting surface and facing upstream of relative air movement. The strut has a rounded leading edge, and is generally ogival-shaped in cross-section. There is a blended, relatively quickly-changing transition section to blend the trailing end of the cylindrical barrel into the ogival-shaped strut section so that the probe has reduced weight of the strut and drag, and through reduction of the cross-sectional area and rounding the strut leading edge, has enhanced anti-icing performance.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: July 26, 1994
    Assignee: Rosemount Inc.
    Inventors: Eric A. Hedberg, Jeffrey M. Setterholm
  • Patent number: 5046360
    Abstract: A short, strut mounted, multifunction air data sensing probe providing reduced drag, weight and radar cross-section has a modular internal construction providing a multiple passageway pressure assembly to transfer sensed pressure signals from individual sensing ports on a probe barrel to pressure carrying conduits extending into the mounting- strut of the probe. The modular construction eliminates the need for having interior chambers made by fixing a series of difficult to locate bulkheads on the probe, interior, with separate lines running from each of the chambers to provide the pressure signal from each of the ports. The modular construction also permits mounting a deicing heater on internal parts other than the outer probe shell so that the manufacture of-the probe is further simplified, and the types of material used for the probe shell can be changed without concern about heater mounting.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: September 10, 1991
    Assignee: Rosemount Inc.
    Inventor: Eric A. Hedberg
  • Patent number: D345708
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: April 5, 1994
    Assignee: Rosemount Inc.
    Inventors: Eric A. Hedberg, Jeffrey M. Setterholm
  • Patent number: D345709
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: April 5, 1994
    Assignee: Rosemount Inc.
    Inventors: Eric A. Hedberg, Jeffrey M. Setterholm
  • Patent number: D345710
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: April 5, 1994
    Assignee: Rosemount Inc.
    Inventors: Eric A. Hedberg, Jeffrey M. Setterholm