Patents by Inventor Ronald Frank Joosten

Ronald Frank Joosten 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).

  • Revolving door
    Patent number: 7052390
    Abstract: A revolving door for installation in a building, comprising a cylindrical shell wall, within the shell wall door leaves rotating about a central shaft and between a bottom plate and a top plate, and entrance and exit openings provided in the shell wall, at least one of which having an air-outflow unit disposed at a vertical edge of the shell wall, having an outlet slot for the generation of a vertically oriented and between the bottom plate and the top plate oriented air curtain substantially filling the headroom of the door, wherein the outlet slot is directed substantially radially towards the interior of the revolving door, and wherein during use the door leaves provide an antidraught seal, with the air-outflow unit being placed inside the building.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: May 30, 2006
    Assignee: Boon Edam B.V.
    Inventors: Gertjan Otto, Ronald Frank Joosten, Volkert Fester
  • Revolving door
    Publication number: 20040172880
    Abstract: A revolving door for installation in a building, comprising a cylindrical shell wall, within the shell wall door leaves rotating about a central shaft and between a bottom plate and a top plate, and entrance and exit openings provided in the shell wall, at least one of which having an air-outflow unit disposed at a vertical edge of the shell wall, having an outlet slot for the generation of a vertically oriented and between the bottom plate and the top plate oriented air curtain substantially filling the headroom of the door, wherein the outlet slot is directed substantially radially towards the interior of the revolving door, and wherein during use the door leaves provide an antidraught seal, with the air-outflow unit being placed inside the building.
    Type: Application
    Filed: February 18, 2004
    Publication date: September 9, 2004
    Applicant: BOON EDAM B.V.
    Inventors: Gertjan Otto, Ronald Frank Joosten, Volkert Fester