Patents by Inventor Wendy Dannels

Wendy Dannels 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).

  • Hydrogen sensor with air access
    Patent number: 8028561
    Abstract: The invention is directed at a method of sensing hydrogen gas in a liquid comprising: providing a measuring device comprising a hydrogen sensing chamber and a palladium hydrogen sensor mounted in contact with said chamber, positioning a hydrogen permeable membrane between the liquid and the hydrogen sensor and creating a headspace, selectively providing air to the sensor headspace, thereby bringing air into contact with said palladium sensor to refresh the palladium, after the palladium sensor is refreshed shutting off air flow to the sensor headspace, bringing liquid into said chamber, allowing hydrogen to pass through the membrane and reach equilibrium, and reading the hydrogen concentration.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: October 4, 2011
    Assignee: Qualitrol Company, LLC
    Inventors: Joshua J. Herz, Wendy Dannels, Robert E. Taylor, Steven E. Mulvaney
  • HYDROGEN SENSOR WITH AIR ACCESS
    Publication number: 20100077828
    Abstract: The invention is directed at a method of sensing hydrogen gas in a liquid comprising: providing a measuring device comprising a hydrogen sensing chamber and a palladium hydrogen sensor mounted in contact with said chamber, positioning a hydrogen permeable membrane between the liquid and the hydrogen sensor and creating a headspace, selectively providing air to the sensor headspace, thereby bringing air into contact with said palladium sensor to refresh the palladium, after the palladium sensor is refreshed shutting off air flow to the sensor headspace, bringing liquid into said chamber, allowing hydrogen to pass through the membrane and reach equilibrium, and reading the hydrogen concentration.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Applicant: QUALITROL COMPANY, LLC
    Inventors: Joshua J. Herz, Wendy Dannels, Robert E. Taylor, Steven E. Mulvaney