Patents Assigned to QIRRASOUND TECHNOLOGIES EUROPE AB
  • Patent number: 10184258
    Abstract: A spectator hall at racetracks includes a roof with an inner ceiling decreasing in height from the racetrack, an opening directed to the racetrack, a back wall, a number of seats arranged with increasing height from the racetrack, at least one loud speaker at the ceiling near the opening, and an invisible front wall covering the opening. The invisible front wall is made from a stable material like glass or acrylic polymer, and is mounted stiffly e g by stiffening bars.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: January 22, 2019
    Assignee: QIRRASOUND TECHNOLOGIES EUROPE AB
    Inventor: Thomas Lagö
  • Publication number: 20180155943
    Abstract: A spectator hall at racetracks includes a roof with an inner ceiling decreasing in height from the racetrack, an opening directed to the racetrack, a back wall, a number of seats arranged with increasing height from the racetrack, at least one loud speaker at the ceiling near the opening, and an invisible front wall covering the opening. The invisible front wall is made from a stable material like glass or acrylic polymer, and is mounted stiffly e g by stiffening bars.
    Type: Application
    Filed: July 7, 2017
    Publication date: June 7, 2018
    Applicant: QIRRASOUND TECHNOLOGIES EUROPE AB
    Inventor: Thomas LAGÖ