Patents by Inventor Shuanglai Yang

Shuanglai Yang 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).

  • Lifting system and lifting method for jib of an operating machine, and an operating machine thereof
    Patent number: 9638217
    Abstract: A lifting system for a jib of an operating machine that includes an energy storage device having an energy storage cylinder and an accumulator, the energy storage cylinder having an upper chamber, a lower chamber, and an energy storage piston rod connected to the jib. The upper part of the accumulator is filled with gas, and the lower part of the accumulator is filled with hydraulic oil and communicates with the lower chamber of the energy storage cylinder. The lifting system also includes a hydraulic pump and a control cylinder for controlling the lifting of the jib, which comprises an upper chamber, a lower chamber, and a control piston rod connected to the jib.
    Type: Grant
    Filed: December 26, 2011
    Date of Patent: May 2, 2017
    Inventor: Shuanglai Yang
  • LIFTING SYSTEM AND LIFTING METHOD FOR JIB OF AN OPERATING MACHINE, AND AN OPERATING MACHINE THEREOF
    Publication number: 20140000250
    Abstract: A lifting system for a jib of an operating machine that includes an energy storage device having an energy storage cylinder and an accumulator, the energy storage cylinder having an upper chamber, a lower chamber, and an energy storage piston rod connected to the jib. The upper part of the accumulator is filled with gas, and the lower part of the accumulator is filled with hydraulic oil and communicates with the lower chamber of the energy storage cylinder. The lifting system also includes a hydraulic pump and a control cylinder for controlling the lifting of the jib, which comprises an upper chamber, a lower chamber, and a control piston rod connected to the jib.
    Type: Application
    Filed: December 26, 2011
    Publication date: January 2, 2014
    Inventor: Shuanglai Yang