Patents Assigned to Inventio HG
  • Flexible elevator car dome to reduce noises from airflow
    Patent number: 6318509
    Abstract: An apparatus for reducing wind noises on elevator cars traveling at high speed includes domes with an aerodynamically favorable shape that are attached above the car roof and/or under the car floor. The domes are made of a flexible material attached over a supporting frame of rods or tubular air chambers. Closable openings in the dome walls permit evacuation of passengers and access to the car roof and the underside of the car.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: November 20, 2001
    Assignee: Inventio HG
    Inventors: Jürg Spieler, Jürgen Kästle, Alex Oberer