Patents by Inventor Ladona Willis

Ladona Willis 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).

  • Patent number: 7591197
    Abstract: A system for sampling air and collecting particles entrained in the air that potentially include bioagents. The system comprises providing a receiving surface, directing a liquid to the receiving surface and producing a liquid surface. Collecting samples of the air and directing the samples of air so that the samples of air with particles entrained in the air impact the liquid surface. The particles potentially including bioagents become captured in the liquid. The air with particles entrained in the air impacts the liquid surface with sufficient velocity to entrain the particles into the liquid but cause minor turbulence. The liquid surface has a surface tension and the collector samples the air and directs the air to the liquid surface so that the air with particles entrained in the air impacts the liquid surface with sufficient velocity to entrain the particles into the liquid, but cause minor turbulence on the surface resulting in insignificant evaporation of the liquid.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: September 22, 2009
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Perry M. Bell, Allen T. Christian, Christopher G. Bailey, Ladona Willis, Donald A. Masquelier, Shanavaz L. Nasarabadi
  • Patent number: 7503229
    Abstract: A system for sampling air and collecting particles entrained in the air comprising a receiving surface, a liquid input that directs liquid to the receiving surface and produces a liquid surface, an air input that directs the air so that the air with particles entrained in the air impact the liquid surface, and an electrostatic contact connected to the liquid that imparts an electric charge to the liquid. The particles potentially including bioagents become captured in the liquid by the air with particles entrained in the air impacting the liquid surface. Collection efficiency is improved by the electrostatic contact electrically charging the liquid. The effects of impaction and adhesion due to electrically charging the liquid allows a unique combination in a particle capture medium that has a low fluid consumption rate while maintaining high efficiency.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: March 17, 2009
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Perry M. Bell, Allen T. Christian, Christopher G. Bailey, Ladona Willis, Donald A. Masquelier, Shanavaz L. Nasarabadi
  • Patent number: 7503230
    Abstract: A system for sampling air and collecting particles potentially including bioagents entrained in the air for detection. The system comprises collecting a sample of the air with the particles entrained in the air, directing the sample to a receiving surface, directing a liquid to the receiving surface thereby producing a liquid surface, wherein the particles potentially including bioagents become captured in the liquid, and heating the liquid wherein the particles potentially including bioagents become heated to lysis the bioagents.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: March 17, 2009
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Perry M. Bell, Allen T. Christian, Christopher G. Bailey, Ladona Willis, Donald A. Masquelier, Shanavaz L. Nasarabadi
  • Publication number: 20070107539
    Abstract: A system for sampling air and collecting particles entrained in the air that potentially include bioagents. The system comprises providing a receiving surface, directing a liquid to the receiving surface and producing a liquid surface. Collecting samples of the air and directing the samples of air so that the samples of air with particles entrained in the air impact the liquid surface. The particles potentially including bioagents become captured in the liquid. The air with particles entrained in the air impacts the liquid surface with sufficient velocity to entrain the particles into the liquid but cause minor turbulence. The liquid surface has a surface tension and the collector samples the air and directs the air to the liquid surface so that the air with particles entrained in the air impacts the liquid surface with sufficient velocity to entrain the particles into the liquid, but cause minor turbulence on the surface resulting in insignificant evaporation of the liquid.
    Type: Application
    Filed: August 1, 2006
    Publication date: May 17, 2007
    Inventors: Perry Bell, Allen Christian, Christopher Bailey, Ladona Willis, Donald Masquelier, Shanavaz Nasarabadi
  • Publication number: 20070107537
    Abstract: A system for sampling air and collecting particles entrained in the air comprising a receiving surface, a liquid input that directs liquid to the receiving surface and produces a liquid surface, an air input that directs the air so that the air with particles entrained in the air impact the liquid surface, and an electrostatic contact connected to the liquid that imparts an electric charge to the liquid. The particles potentially including bioagents become captured in the liquid by the air with particles entrained in the air impacting the liquid surface. Collection efficiency is improved by the electrostatic contact electrically charging the liquid. The effects of impaction and adhesion due to electrically charging the liquid allows a unique combination in a particle capture medium that has a low fluid consumption rate while maintaining high efficiency.
    Type: Application
    Filed: August 1, 2006
    Publication date: May 17, 2007
    Inventors: Perry Bell, Allen Christian, Christopher Bailey, Ladona Willis, Donald Masquelier, Shanavaz Nasarabadi
  • Publication number: 20070107538
    Abstract: A system for sampling air and collecting particles potentially including bioagents entrained in the air for detection. The system comprises collecting a sample of the air with the particles entrained in the air, directing the sample to a receiving surface, directing a liquid to the receiving surface thereby producing a liquid surface, wherein the particles potentially including bioagents become captured in the liquid, and heating the liquid wherein the particles potentially including bioagents become heated to lysis the bioagents.
    Type: Application
    Filed: August 1, 2006
    Publication date: May 17, 2007
    Inventors: Perry Bell, Allen Christian, Christopher Bailey, Ladona Willis, Donald Masquelier, Shanavaz Nasarabadi