Patents by Inventor David K. Christensen

David K. Christensen 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: 7827803
    Abstract: A method for using an aerodynamic stability management system is disclosed. The method includes placing at least one pressure sensor in a compressor, the at least one pressure sensor communicating with an aerodynamic stability management system controller and monitoring gas turbine engine performance using the aerodynamic stability management system controller. The controller includes a memory, an input/output interface and a processor. The method also includes defining a correlation threshold value and calculating a correlation measure using a plurality of pressure signals generated by the at least one pressure sensor and comparing the correlation measure with the correlation threshold value. When the correlation measure is less than the correlation threshold value a corrective action is implemented.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: November 9, 2010
    Assignee: General Electric Company
    Inventors: Aspi Rustom Wadia, David K. Christensen, Andrew Breeze-Stringfellow, Kiyoung Chung, Matthew William Wiseman, Peter Nicholas Szucs
  • Patent number: 5714104
    Abstract: A method of molding an integrated structure, the method comprising the steps of (a) using at least first and second mold parts to define a primary mold cavity, (b) placing first molding material in the primary mold cavity to form a primary structure, (c) removing the second mold part from the first mold part, (d) using the first mold part and at least a third mold part to define a secondary mold cavity partially filled by the primary structure, and (e) placing second molding material in the remainder of the secondary mold cavity to form the integrated structure including the primary structure and the second molding material.
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: February 3, 1998
    Assignee: Outboard Marine Corporation
    Inventors: Francis V. Bailey, David K. Christensen, Russell J. VanRens