Patents by Inventor Kari PAHKALA

Kari PAHKALA 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).

  • Elevator system and method for implementing a sound system for an elevator
    Patent number: 9860648
    Abstract: Improvement to a sound system for an elevator system and method for implementing the sound system for an elevator. The elevator sound system is improved by replacing at least one loudspeaker to be used in the sound system with a plate-like electrostatic actuator producing a directed sound field. The patent application also contains an independent claim for a method for implementing a sound system for an elevator.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: January 2, 2018
    Assignee: Kone Corporation
    Inventors: Kari Pahkala, Matti Kujala
  • ELEVATOR SYSTEM AND METHOD FOR IMPLEMENTING A SOUND SYSTEM FOR AN ELEVATOR
    Publication number: 20150146896
    Abstract: Improvement to a sound system for an elevator system and method for implementing the sound system for an elevator. The elevator sound system is improved by replacing at least one loudspeaker to be used in the sound system with a plate-like electrostatic actuator producing a directed sound field. The patent application also contains an independent claim for a method for implementing a sound system for an elevator.
    Type: Application
    Filed: February 2, 2015
    Publication date: May 28, 2015
    Inventors: Kari PAHKALA, Matti KUJALA