Patents by Inventor Louise Speitel

Louise Speitel 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).

  • Generating and determining the products of premixed combustion of solid materials in a microscale fire calorimeter
    Patent number: 11579103
    Abstract: Embodiments described herein provide for the flameless premixed combustion of the pyrolysis gases of a milligram-sized sample of solid material in a microscale fire calorimeter (MFC) at high temperatures of combustion and under precisely controlled fuel-to-oxygen ratios. The microscale fire calorimeter (MFC) device and techniques set out herein provide for the generation of fuel gases from solids and the mixing of those fuel gases with oxygen under controlled conditions to obtain precise fuel/oxygen ratios during combustion. Combustion is conducted under flameless, premixed conditions in a rapid test that can generate soot and other products of incomplete combustion, which may then be analyzed to determine their type and nature. This allows for microscale, accurate, and convenient techniques for the generation and determination of the type and nature of combustion species produced over the full range of fire stages from early stage (over-ventilated) fires to late-stage (under-ventilated/high-toxicity) fires.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: February 14, 2023
    Assignee: The United States of America, as represented by the Administrator of the Federal Aviation Administration
    Inventors: Richard E. Lyon, Louise Speitel, Richard N. Walters
  • Generating and Determining the Products of Premixed Combustion of Solid Materials in a Microscale Fire Calorimeter
    Publication number: 20200340935
    Abstract: Embodiments described herein provide for the flameless premixed combustion of the pyrolysis gases of a milligram-sized sample of solid material in a microscale fire calorimeter (MFC) at high temperatures of combustion and under precisely controlled fuel-to-oxygen ratios. The microscale fire calorimeter (MFC) device and techniques set out herein provide for the generation of fuel gases from solids and the mixing of those fuel gases with oxygen under controlled conditions to obtain precise fuel/oxygen ratios during combustion. Combustion is conducted under flameless, premixed conditions in a rapid test that can generate soot and other products of incomplete combustion, which may then be analyzed to determine their type and nature. This allows for microscale, accurate, and convenient techniques for the generation and determination of the type and nature of combustion species produced over the full range of fire stages from early stage (over-ventilated) fires to late-stage (under-ventilated/high-toxicity) fires.
    Type: Application
    Filed: April 6, 2020
    Publication date: October 29, 2020
    Applicant: The United States of America, as represented by the administrator of the Federal Aviation Administra
    Inventors: Richard E. Lyon, Louise Speitel, Richard N. Walters