Patents by Inventor Vladimiro Lidak

Vladimiro Lidak 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).

  • Constant velocity universal joint for helicopter rotor
    Patent number: 9388862
    Abstract: A constant velocity universal joint for helicopters with gimballed rotors, in which the hub of a rotor is supported on a transmission shaft by means of a cardan's suspension composed of a first inner ring with a revolute connection to two opposite pins of the carrier connected to transmission shaft and a second outer ring with a revolute connection to two opposite pins of the hub. The rings are also interconnected by swivel opposite pins, in quadrature with respect to the pins connected to the transmission shaft and to the pins of the hub, whose common axis is stably maintained in a plane, which bisects the angle between the axes of rotation of the hub and the transmission shaft, by at least one device, which is connected to the transmission shaft and to the hub, thus obtaining a homokinetic transmission of rotational motion between the transmission shaft and the hub.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: July 12, 2016
    Assignee: K4A S.R.L.
    Inventor: Vladimiro Lidak
  • CONSTANT VELOCITY UNIVERSAL JOINT FOR HELICOPTER ROTOR
    Publication number: 20140302938
    Abstract: A constant velocity universal joint for helicopters with gimballed rotors, in which the hub of a rotor is supported on a transmission shaft by means of a cardan's suspension composed of a first inner ring with a revolute connection to two opposite pins of the carrier connected to transmission shaft and a second outer ring with a revolute connection to two opposite pins of the hub. The rings are also interconnected by swivel opposite pins, in quadrature with respect to the pins connected to the transmission shaft and to the pins of the hub, whose common axis is stably maintained in a plane, which bisects the angle between the axes of rotation of the hub and the transmission shaft, by at least one device, which is connected to the transmission shaft and to the hub, thus obtaining a homokinetic transmission of rotational motion between the transmission shaft and the hub.
    Type: Application
    Filed: October 23, 2012
    Publication date: October 9, 2014
    Applicant: K4A S.R.L.
    Inventor: Vladimiro Lidak
  • Helicopter single-blade rotor
    Patent number: 6619585
    Abstract: The present invention relates to a single-blade main rotor for helicopters designed so that the component of the blade lift normal to the rotational axis of the rotor is compensated by the inertial force obtained through the self-adjustment of the position of the rotor centre of mass relative to its rotation axis, it being provided that the position of the rotor centre of mass is determined by the coning angle of the blade.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: September 16, 2003
    Inventor: Vladimiro Lidak