Patents by Inventor Etienne Decayeux

Etienne Decayeux 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).

  • Combination disk lock comprising means for automatic scrambling on locking
    Patent number: 4961332
    Abstract: A lock comprising notched combination disks, a bolt movable in translation and urged to its extended position which may be moved solely when a coded combination has been formed by rotation of the combination disks, and means for driving the bolt to its retracted position. In accordance with the invention, the lock comprises means for locking the bolt in the retracted position, means for making said bolt drive means inoperative when the bolt is in its retracted position, and means for unlocking the bolt once the door has been opened then closed again.
    Type: Grant
    Filed: May 24, 1988
    Date of Patent: October 9, 1990
    Assignee: Decayeux S.A.
    Inventors: Serge Deswarte, Etienne Decayeux