Patents by Inventor Pekka Peralla

Pekka Peralla 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).

  • Method and system for measuring the stopping accuracy of an elevator car
    Patent number: 7434666
    Abstract: The invention relates to a condition monitoring method and a corresponding system for measuring the stopping accuracy of an elevator car. In the invention, a door zone is defined for each floor, a door zone detector is mounted on the elevator car, the elevator car is moved towards a destination floor, acceleration values of the elevator car are measured during its travel towards the destination floor by means of an acceleration sensor attached to the elevator car and the distance of the stopped elevator from the edge of the door zone is calculated on the basis of the measured acceleration values.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: October 14, 2008
    Assignee: Kone Corporation
    Inventors: Tapio Tyni, Pekka Perällä
  • Method and system for measuring the stopping accuracy of an elevator car
    Publication number: 20070215413
    Abstract: The invention relates to a condition monitoring method and a corresponding system for measuring the stopping accuracy of an elevator car. In the invention, a door zone is defined for each floor, a door zone detector is mounted on the elevator car, the elevator car is moved towards a destination floor, acceleration values of the elevator car are measured during its travel towards the destination floor by means of an acceleration sensor attached to the elevator car and the distance of the stopped elevator from the edge of the door zone is calculated on the basis of the measured acceleration values.
    Type: Application
    Filed: March 5, 2007
    Publication date: September 20, 2007
    Applicant: KONE CORPORATION
    Inventors: Tapio Tyni, Pekka Peralla