Patents by Inventor Mario Libardi

Mario Libardi 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).

  • Patent number: 6715234
    Abstract: A turnstile entry gate comprising at least two, at equiangular distances on an arm carrier (5) mounted barrier arms (2-3), the arm carrier (5) being by way of a remote-controlled barrier device (6) arranged to permit or to prevent turning in at least one rotational direction. The arm carrier (5), or at least one of disks (7; 8) arranged near and connected thereto exhibits a magnetic strip (9) preferably extending circumferentially and adapted, by way of sensors, to indicate the position and the direction of movement of the turnstile. The barrier function of the device (6) is normally mechanically disconnected when one of the barrier arms (2-4) in the turnstile is in its home position, i.e. horizontally oriented, the sensor and electronic systems only checking that a passage has taken place and that, with the aid of e.g. a spring and/or hydraulics, the turnstile can assume its next home position.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: April 6, 2004
    Assignee: Gunnebo Entrance Control AB
    Inventor: Mario Libardi
  • Patent number: 5349781
    Abstract: A turnstile provided with an electronic control unit having a photoelectric cell (8, 9) connected therewith, located downstream from the turnstile revolving member (3), in the user walking-through direction, in order to check if the user has actually walked through. Therefore, the turnstile has the ability to detect and issue a signal for, a simulated walking-through attempt performed by a user who actuates turnstile revolving member (3) without actually walking-through said turnstile, and it proves particularly effective for checking the arrival and the presence of personnel at the working posts.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: September 27, 1994
    Assignee: Italdis S.p.A.
    Inventor: Mario Libardi