Patents by Inventor Stephen Karl Kramer

Stephen Karl Kramer 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).

  • Annular gas turbine combustor including converging and diverging segments
    Patent number: 8671692
    Abstract: A combustor assembly includes a convergent segment followed by a divergent segment to advantageously improve combustion. The combustor assembly includes a first segment beginning at a forward end that transitions to a second segment past a transition segment in a direction along a combustor axis toward an aft end. The reduction in cross-sectional area within the first segment provides desirable fuel and air mixing properties. The convergent first segment in combination with the divergent second segment decreases residence time of fuel-air mixture within the combustor chamber that decreases production of undesirable emissions from the combustor assembly.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: March 18, 2014
    Assignee: United Technologies Corporation
    Inventors: Steven W. Burd, William Sowa, Albert K. Cheung, Stephen Karl Kramer, Reid Dyer Curtis Smith, James Hoke
  • ANNULAR GAS TURBINE COMBUSTOR
    Publication number: 20120017599
    Abstract: A combustor assembly includes a convergent segment followed by a divergent segment to advantageously improve combustion. The combustor assembly includes a first segment beginning at a forward end that transitions to a second segment past a transition segment in a direction along a combustor axis toward an aft end. The reduction in cross-sectional area within the first segment provides desirable fuel and air mixing properties. The convergent first segment in combination with the divergent second segment decreases residence time of fuel-air mixture within the combustor chamber that decreases production of undesirable emissions from the combustor assembly.
    Type: Application
    Filed: October 3, 2011
    Publication date: January 26, 2012
    Inventors: Steven W. Burd, William Sowa, Albert K. Cheung, Stephen Karl Kramer, Reid Dyer Curtis Smith, James Hoke
  • Annular gas turbine combustor
    Patent number: 8028528
    Abstract: A combustor assembly includes a convergent segment followed by a divergent segment to advantageously improve combustion. The combustor assembly includes a first segment beginning at a forward end that transitions to a second segment past a transition segment in a direction along a combustor axis toward an aft end. The reduction in cross-sectional area within the first segment provides desirable fuel and air mixing properties. The convergent first segment in combination with the divergent second segment decreases residence time of fuel-air mixture within the combustor chamber that decreases production of undesirable emissions from the combustor assembly.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: October 4, 2011
    Assignee: United Technologies Corporation
    Inventors: Steven W. Burd, William Sowa, Albert K. Cheung, Stephen Karl Kramer, Reid Dyer Curtis Smith, James Hoke