Patents by Inventor Bo M. Thordmark

Bo M. Thordmark 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).

  • Cylinder lock
    Patent number: 5542274
    Abstract: A cylinder lock (1) comprises a lock cylinder (2) and a key-operated cylinder plug (3). A latching element (10) is located in the region of the boundary surface between the lock cylinder and the plug and is activated by an electrically actuable blocking element (11) which is movable between a release position and a blocking position. The plug cannot be turned by means of the key when the blocking element is in its blocking position. The latching element (10) has a length which is slightly shorter than the axial length of the plug (3).
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: August 6, 1996
    Assignee: ASSA AB
    Inventors: Bo M. Thordmark, Lars Wallden