Patents by Inventor Kyu Chai shin

Kyu Chai shin 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).

  • HYDRAULIC CONTROL DEVICE USING HYDRAULIC ACTUATOR
    Publication number: 20150219124
    Abstract: Disclosed herein is a hydraulic control device using a hydraulic actuator. The apparatus includes a hydraulic actuator (110) having a clearance pocket (112), an oil supply line (SL) and an oil discharge line (DL) connected to the hydraulic actuator, a pilot valves (130) provided on each of the oil supply line and the oil discharge line, and a accumulator (140) supplying additional oil to the hydraulic actuator. The hydraulic control device facilitates hydraulic control and makes it possible to control the hydraulic pressure more efficiently and appropriately.
    Type: Application
    Filed: October 12, 2012
    Publication date: August 6, 2015
    Inventors: Bum Su Kim, Dong Myung Park, Kyu Chai shin