Patents by Inventor David Jan

David Jan 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: 8312729
    Abstract: A flow discouraging system includes a stator assembly, fins, and a rotor assembly. The stator assembly includes stationary components forming a side wall including an annular groove defined by an outer axially-extending surface, an inner axially-extending surface, and a radial surface. One or more outer axial fins disposed in the annular groove extend along the outer axially-extending surface of the side wall. One or more inner axial fins disposed in the annular groove extend along the inner axially-extending surface of the side wall. One or more radial fins disposed in the annular groove extend axially from the radial surface of the side wall. The rotor assembly is disposed adjacent to and is spaced apart from the stator assembly to form a portion of a cavity and includes an annular rim extending at least partially into the annular groove and disposed between the outer and inner axial fins.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: November 20, 2012
    Assignee: Honeywell International Inc.
    Inventors: Mark Matwey, David Jan
  • Publication number: 20110067414
    Abstract: A flow discouraging system includes a stator assembly, fins, and a rotor assembly. The stator assembly includes stationary components forming a side wall including an annular groove defined by an outer axially-extending surface, an inner axially-extending surface, and a radial surface. One or more outer axial fins disposed in the annular groove extend along the outer axially-extending surface of the side wall. One or more inner axial fins disposed in the annular groove extend along the inner axially-extending surface of the side wall. One or more radial fins disposed in the annular groove extend axially from the radial surface of the side wall. The rotor assembly is disposed adjacent to and is spaced apart from the stator assembly to form a portion of a cavity and includes an annular rim extending at least partially into the annular groove and disposed between the outer and inner axial fins.
    Type: Application
    Filed: September 21, 2009
    Publication date: March 24, 2011
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Mark Matwey, David Jan
  • Publication number: 20070087055
    Abstract: A directly compressible extended release pharmaceutical dosage form comprising alprazolam and at least two high viscosity polymers, wherein said first high viscosity polymer and said second high viscosity polymer are present in a ratio from about 4:1 to about 2:1.
    Type: Application
    Filed: October 14, 2005
    Publication date: April 19, 2007
    Inventors: David Jan, Xiu Cheng, Guohua Zhang, Roger Carter
  • Publication number: 20060078422
    Abstract: A method of modifying a turbine nozzle area comprises depositing a thermal barrier coating (TBC) on the nozzle endwalls to provide a minimum nozzle area, evaluating an airflow through the nozzle, and machining the TBC to increase the nozzle area. Adjacent segment area variation may be minimized, improving engine reliability by reducing the aerodynamic excitation to the down stream blade.
    Type: Application
    Filed: October 12, 2004
    Publication date: April 13, 2006
    Applicant: Honeywell International Inc.
    Inventors: Mark Morris, Thomas Strangman, Craig Wilson, George Wolfmeyer, Steve Halfmann, David Jan