Patents by Inventor Lev Perkarsky

Lev Perkarsky 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).

  • Accumulator for maintaining hydraulic pressure following an engine restart
    Patent number: 8734293
    Abstract: A system for pressurizing transmission control elements includes an accumulator for containing pressurized fluid, first and second check valves, a booster valve supplied with accumulator pressure, and an actuator that causes the booster valve to open a fluidic connection between the accumulator and the control elements through the check valves in response to an engine restart signal.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: May 27, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Lev Perkarsky, Robert O. Burkhart, Derek Kinch, John Butwin