Patents by Inventor Marta Lea Verhoff

Marta Lea Verhoff 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).

  • Apparatus and method for purifying air
    Patent number: 6607579
    Abstract: An apparatus for removing particles from air, including an inlet for receiving a flow of air, a first chamber in flow communication with the inlet, wherein a charged spray of semi-conducting fluid droplets having a first polarity is introduced to the air flow so that the particles are electrostatically attracted to and retained by the spray droplets, and an outlet in flow communication with the first chamber, wherein the air flow exits the apparatus substantially free of the particles. The first chamber of the apparatus further includes a collecting surface for attracting the spray droplets, a power supply, and a spray nozzle connected to the power supply for receiving fluid and producing the spray droplets therefrom. The apparatus may also include a second chamber in flow communication with the inlet at a first end and the first chamber at a second end, wherein particles entrained in the air flow are charged with a second polarity opposite the first polarity prior to the air flow entering the first chamber.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: August 19, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Alan David Willey, Vladimir Gartstein, Chinto Benjamin Gaw, Marta Lea Verhoff, James Henry Saunders, Jean Angela Jefferson, Robert Scott Youngquist
  • Fluid utilized in apparatus for purifying air
    Patent number: 6607586
    Abstract: An apparatus for removing particles from air, including an inlet for receiving a flow of air, a first chamber in flow communication with the inlet, wherein a charged spray of semi-conducting fluid droplets having a first polarity is introduced to the air flow so that the particles are electrostatically attracted to and retained by the spray droplets, and an outlet in flow communication with the first chamber, wherein the air flow exits the apparatus substantially free of the particles. The first chamber of the apparatus further includes a collecting surface for attracting the spray droplets, a power supply, and a spray nozzle connected to the power supply for receiving fluid and producing the spray droplets therefrom. The apparatus may also include a second chamber in flow communication with the inlet at a first end and the first chamber at a second end, wherein particles entrained in the air flow are charged with a second polarity opposite the first polarity prior to the air flow entering the first chamber.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: August 19, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Alan David Willey, Vladimir Gartstein, Marta Lea Verhoff, Mehmet Suha Yazici
  • Fluid utilized in apparatus for purifying air
    Publication number: 20030079608
    Abstract: An apparatus for removing particles from air, including an inlet for receiving a flow of air, a first chamber in flow communication with the inlet, wherein a charged spray of semi-conducting fluid droplets having a first polarity is introduced to the air flow so that the particles are electrostatically attracted to and retained by the spray droplets, and an outlet in flow communication with the first chamber, wherein the air flow exits the apparatus substantially free of the particles. The first chamber of the apparatus further includes a collecting surface for attracting the spray droplets, a power supply, and a spray nozzle connected to the power supply for receiving fluid and producing the spray droplets therefrom. The apparatus may also include a second chamber in flow communication with the inlet at a first end and the first chamber at a second end, wherein particles entrained in the air flow are charged with a second polarity opposite the first polarity prior to the air flow entering the first chamber.
    Type: Application
    Filed: October 29, 2001
    Publication date: May 1, 2003
    Inventors: Alan David Willey, Vladimir Gartstein, Marta Lea Verhoff, Mehmet Suha Yazici
  • Apparatus and method for purifying air
    Publication number: 20020185004
    Abstract: An apparatus for removing particles from air, including an inlet for receiving a flow of air, a first chamber in flow communication with the inlet, wherein a charged spray of semi-conducting fluid droplets having a first polarity is introduced to the air flow so that the particles are electrostatically attracted to and retained by the spray droplets, and an outlet in flow communication with the first chamber, wherein the air flow exits the apparatus substantially free of the particles. The first chamber of the apparatus further includes a collecting surface for attracting the spray droplets, a power supply, and a spray nozzle connected to the power supply for receiving fluid and producing the spray droplets therefrom. The apparatus may also include a second chamber in flow communication with the inlet at a first end and the first chamber at a second end, wherein particles entrained in the air flow are charged with a second polarity opposite the first polarity prior to the air flow entering the first chamber.
    Type: Application
    Filed: October 29, 2001
    Publication date: December 12, 2002
    Inventors: Alan David Willey, Vladimir Gartstein, Chinto Benjamin Gaw, Marta Lea Verhoff, James Henry Saunders, Jean Angela Jefferson, Robert Scott Youngquist