Patents by Inventor Sheena Alm

Sheena Alm 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).

  • Multi-dimensional portable gas chromatograph system
    Patent number: 8114200
    Abstract: A portable multi-dimensional gas chromatograph, the gas chromatograph including a carrier gas container, a regulator fluidly connected to the carrier gas container, a dopant chamber containing a reference chemical, at least one pre-concentrator which is fluidly connected to the regulator and the dopant chamber, a first separation column fluidly connected to the at least one pre-concentrator, a second separation column fluidly connected to the at least one pre-concentrator, a first detector fluidly connected to the first separation column, and a second detector fluidly connected to the second separation column.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: February 14, 2012
    Assignee: VPI Enigineering, Inc.
    Inventors: Sheena Alm, James Bentley, John Blankevoort, Mark Kaspersen, Collin Lewis, Derek Maxwell, Ken Wunner
  • MULTI-DIMENSIONAL PORTABLE GAS CHROMATOGRAPH SYSTEM
    Publication number: 20100250146
    Abstract: A portable multi-dimensional gas chromatograph, the gas chromatograph including a carrier gas container, a regulator fluidly connected to the carrier gas container, a dopant chamber containing a reference chemical, at least one pre-concentrator which is fluidly connected to the regulator and the dopant chamber, a first separation column fluidly connected to the at least one pre-concentrator, a second separation column fluidly connected to the at least one pre-concentrator, a first detector fluidly connected to the first separation column, and a second detector fluidly connected to the second separation column.
    Type: Application
    Filed: June 11, 2010
    Publication date: September 30, 2010
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventors: Sheena Alm, James Bentley, John Blankevoort, Mark Kaspersen, Collin Lewis, Derek Maxwell, Ken Wunner
  • Multi-dimensional portable gas chromatograph system
    Patent number: 7735352
    Abstract: A portable multi-dimensional gas chromatograph, the gas chromatograph including a carrier gas container, a regulator fluidly connected to the carrier gas container, a dopant chamber containing a reference chemical, at least one pre-concentrator which is fluidly connected to the regulator and the dopant chamber, a first separation column fluidly connected to the at least one pre-concentrator, a second separation column fluidly connected to the at least one pre-concentrator, a first detector fluidly connected to the first separation column, and a second detector fluidly connected to the second separation column.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: June 15, 2010
    Assignee: Alliant Techsystems Inc.
    Inventors: Sheena Alm, James Bentley, John Blankevoort, Mark Kaspersen, Collin Lewis, Derek Maxwell, Ken Wunner
  • Multi-dimensional portable gas chromatograph system
    Publication number: 20070266858
    Abstract: A portable multi-dimensional gas chromatograph, the gas chromatograph including a carrier gas container, a regulator fluidly connected to the carrier gas container, a dopant chamber containing a reference chemical, at least one pre-concentrator which is fluidly connected to the regulator and the dopant chamber, a first separation column fluidly connected to the at least one pre-concentrator, a second separation column fluidly connected to the at least one pre-concentrator, a first detector fluidly connected to the first separation column, and a second detector fluidly connected to the second separation column.
    Type: Application
    Filed: May 16, 2006
    Publication date: November 22, 2007
    Inventors: Sheena Alm, Jim Bentley, John Blankevoort, Mark Kaspersen, Collin Lewis, Derek Maxwell, Ken Wunner