Patents by Inventor Paul Garbett

Paul Garbett 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).

  • Electronic key-operable lock and key thereof
    Patent number: 4866962
    Abstract: A key for an electronic lock is provided with a relief coding for reading by a mechanically actuated reading device. The key has a blade along a narrow edge face of which there are formed grooves (or pairs of notches) extending either perpendicularly to the length of the blade or inclined to the perpendicular in one sense or the other.A lock is described in which the grooves or notches are read by two separate reading elements and an electronic circuit determines the key coding by detecting whether the reading elements detect the grooves or notches at the same time or in one order or the other.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: September 19, 1989
    Assignee: Yale Security Products Limited
    Inventors: Walter J. Aston, Paul Garbett