Patents by Inventor Petri Karkela

Petri Karkela 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).

  • Multifunction call buttons for an elevator system
    Patent number: 8215457
    Abstract: The object of the present invention is to provide a method and elevator system (1) that substantially reduces the installation costs when adding new elevator calls to an existing elevator system, or to reduce the amount of hardware required on installation of a new elevator system. A single push button (2) or a combination of push buttons (2) can be used by a user (4) to register a plurality of elevator calls by operating the push button (2), or combination of push buttons (2), in a predetermined manner to register an elevator call.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: July 10, 2012
    Assignee: Otis Elevator Company
    Inventor: Petri Karkela
  • MULTIFUNCTION CALL BUTTONS FOR AN ELEVATOR SYSTEM
    Publication number: 20100243380
    Abstract: The object of the present invention is to provide a method and elevator system (1) that substantially reduces the installation costs when adding new elevator calls to an existing elevator system, or to reduce the amount of hardware required on installation of a new elevator system. A single push button (2) or a combination of push buttons (2) can be used by a user (4) to register a plurality of elevator calls by operating the push button (2), or combination of push buttons (2), in a predetermined manner to register an elevator call.
    Type: Application
    Filed: February 22, 2007
    Publication date: September 30, 2010
    Inventor: Petri Karkela