Patents by Inventor Lev N. Yevstratov

Lev N. Yevstratov 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).

  • Publication number: 20130286233
    Abstract: A stabilized camera system has a roll frame formed as a parallelogram linkage and pivotably attached to a pan frame. A tilt frame is pivotably attached to the roll frame. Control circuits are provided to compensate for drift, to allow manual aiming of the camera during stabilized camera operation, and for providing rapid leveling. The stabilized camera system is compact with low moments of inertia to allow rapid movements.
    Type: Application
    Filed: June 26, 2013
    Publication date: October 31, 2013
    Inventors: Vladimir V. Kozlov, Lev N. Yevstratov, Leonard T. Chapman
  • Publication number: 20120200722
    Abstract: A stabilized camera system has a roll frame formed as a parallelogram linkage and pivotably attached to a pan frame. A tilt frame is pivotably attached to the roll frame. Control circuits are provided to compensate for drift, to allow manual aiming of the camera during stabilized camera operation, and for providing rapid leveling. The stabilized camera system is compact with low moments of inertia to allow rapid movements.
    Type: Application
    Filed: February 27, 2012
    Publication date: August 9, 2012
    Inventors: Vladimir V. Kozlov, Lev N. Yevstratov, Leonard T. Chapman
  • Patent number: 8125564
    Abstract: A stabilized camera system has a roll frame formed as a parallelogram linkage and pivotably attached to a pan frame. A tilt frame is pivotably attached to the roll frame. Control circuits are provided to compensate for drift, to allow manual aiming of the camera during stabilized camera operation, and for providing rapid leveling. The stabilized camera system is compact with low moments of inertia to allow rapid movements.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: February 28, 2012
    Assignee: Chapman/Leonard Studio Equipment
    Inventors: Vladimir V. Kozlov, Lev N. Yevstratov, Leonard T. Chapman