Patents by Inventor Petri Tirkkonen

Petri Tirkkonen 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).

  • Door lock with controllable handle operation
    Patent number: 7353674
    Abstract: A door lock with controllable handle operation including a bolt (3), a follower (5) for moving the bolt and an operation axis (4), on both ends of which an actuator can be installed for operating the follower (5), whereby force transmission from either side of the lock to the follower (5) is established by means of movable coupling members (10a, 10b), which are controlled by a solenoid arrangement (8, 9) or the like, and in which the follower (5) is provided with two separate torsion units (6a, 6b) installed on the operation axis (4) on different sides of the follower (5) and turnably secured thereto, which units can be connected to force transmission with the follower (5) by utilising said coupling members (10a, 10b).
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: April 8, 2008
    Assignee: Abloy Oy
    Inventors: Juha Raatikainen, Petri Tirkkonen
  • Door lock with controllable handle operation
    Publication number: 20070051143
    Abstract: A door lock with controllable handle operation including a bolt (3), a follower (5) for moving the bolt and an operation axis (4), on both ends of which an actuator can be installed for operating the follower (5), whereby force transmission from either side of the lock to the follower (5) is established by means of movable coupling members (10a, 10b), which are controlled by a solenoid arrangement (8, 9) or the like, and in which the follower (5) is provided with two separate torsion units (6a, 6b) installed on the operation axis (4) on different sides of the follower (5) and turnably secured thereto, which units can be connected to force transmission with the follower (5) by utilising said coupling members (10a, 10b).
    Type: Application
    Filed: October 5, 2004
    Publication date: March 8, 2007
    Inventors: Juha Raatikainen, Petri Tirkkonen