Patents by Inventor Gerard H. D. Doinel

Gerard H. D. Doinel 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).

  • Safety lock
    Patent number: 4601184
    Abstract: The present invention relates to a safety lock including a cylindrical body in which is movably mounted a cylinder containing a safety mechanism which is constituted by pivoting blades meshing respectively with toothed wheels loosely mounted on an axis pin transversely connected to a cylinder and each provided with a notch adapted to be positively and drivingly connected to a catch for operating the lock mechanism, only after the notches are caused to coincide with the catch which initially is spaced from the wheels.
    Type: Grant
    Filed: September 10, 1984
    Date of Patent: July 22, 1986
    Assignee: Fichet Bauche
    Inventor: Gerard H. D. Doinel