Patents by Inventor Keijo KINNUNEN

Keijo KINNUNEN 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).

  • Disc tumbler cylinder lock and key combination
    Patent number: 11885150
    Abstract: A combination of a disc tumbler cylinder lock and a key. The disc tumbler cylinder lock includes rotation limiting device for the key and a guiding element. The key includes grooves for the guiding element, which has two rails making up some of said rotation limiting device, and both of the rails include at least one limiter protrusion arranged to facing inward in the disc tumbler cylinder lock. The key includes at least one recess for the limiter protrusions. The rotation limiting device further includes a front guide having the rails in association therewith. The front guide and the rails are arranged to allow the key, which is in a basic position in the disc tumbler cylinder lock, to be turned for releasing the locking of the disc tumbler cylinder lock.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: January 30, 2024
    Assignee: ABLOY OY
    Inventors: Keijo Kinnunen, Jouni Tirkkonen
  • DISC TUMBLER CYLINDER LOCK AND KEY COMBINATION
    Publication number: 20220170293
    Abstract: A combination of a disc tumbler cylinder lock and a key. The disc tumbler cylinder lock includes rotation limiting device for the key and a guiding element. The key includes grooves for the guiding element, which has two rails making up some of said rotation limiting device, and both of the rails include at least one limiter protrusion arranged to facing inward in the disc tumbler cylinder lock. The key includes at least one recess for the limiter protrusions. The rotation limiting device further includes a front guide having the rails in association therewith. The front guide and the rails are arranged to allow the key, which is in a basic position in the disc tumbler cylinder lock, to be turned for releasing the locking of the disc tumbler cylinder lock.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 2, 2022
    Inventors: Keijo KINNUNEN, Jouni TIRKKONEN