Patents by Inventor Kristin Powers Goppel

Kristin Powers Goppel 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).

  • Silicon oxide contamination shedding sensor
    Patent number: 6693433
    Abstract: In a flame ionization sensor type gas combustion control apparatus, the sensor tip, or probe, exposed to the flame is constructed and arranged according to materials and shapes which promote mechanical deformation of the sensor due to thermal expansion and contraction. The mechanical deformation will cause cracks to open in the contaminant layers surrounding the probe, enabling the sensor to perform as intended even though insulative contaminant build up is present.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: February 17, 2004
    Assignee: Gas Research Institute
    Inventors: Stephan E. Schmidt, Kristin Powers Goppel, Eric J. Carlson
  • Constant current flame ionization circuit
    Patent number: 6509838
    Abstract: In a flame ionization sensor type gas combustion control apparatus, the sensor is provided with a power supply which will increase the voltage as contamination build up occurs on the in-flame sensor electrode thereby keeping a constant sensor current and enabling the sensor to perform as intended even though insulative contaminant build up is present on the electrode.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: January 21, 2003
    Inventors: Peter P. Payne, Stephan E. Schmidt, Kristin Powers Goppel, Darrell J. King, Stephen M. Tobin, J. Thomas Fowler
  • Silicon oxide contamination shedding sensor
    Publication number: 20020171432
    Abstract: In a flame ionization sensor type gas combustion control apparatus, the sensor tip, or probe, exposed to the flame is constructed and arranged according to materials and shapes which promote mechanical deformation of the sensor due to thermal expansion and contraction. The mechanical deformation will cause cracks to open in the contaminant layers surrounding the probe, enabling the sensor to perform as intended even though insulative contaminant build up is present.
    Type: Application
    Filed: May 9, 2002
    Publication date: November 21, 2002
    Inventors: Stephan E. Schmidt, Kristin Powers Goppel, Eric J. Carlson
  • Silicon oxide contamination shedding sensor
    Patent number: 6414494
    Abstract: In a flame ionization sensor type gas combustion control apparatus, the sensor tip, or probe, exposed to the flame is constructed and arranged according to materials and shapes which promote mechanical deformation of the sensor due to thermal expansion and contraction. The mechanical deformation will cause cracks to open in the contaminant layers surrounding the probe, enabling the sensor to perform as intended even though insulative contaminant build up is present.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: July 2, 2002
    Inventors: Stephan E. Schmidt, Kristin Powers Goppel, Eric J. Carlson