Patents by Inventor Leo Yang

Leo 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).

  • Patent number: 11795766
    Abstract: A lubricator assembly for servicing a tubular member includes a mounting base, a lubricant housing movably coupled to the mounting base and configured to receive lubricant from a lubricant source, a guide pin slidably disposed in the lubricant housing, a first seal positioned between the guide pin and the lubricant housing and a second seal positioned between the guide pin and the lubricant housing, and a first chamber extending between the first seal and the second seal, wherein the guide pin is configured to direct lubricant disposed in the first chamber against the tubular member in response to the tubular member engaging the guide pin.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: October 24, 2023
    Assignee: National Oilwell Varco, L.P.
    Inventors: Andrew McKenzie, Robert Donnally, Lei Cheng, George Wu, Leo Yang
  • Publication number: 20230166910
    Abstract: A pallet lifting rack includes a pair of lifting devices. Each of the lifting devices has a frame, a movable bracket mounted on the frame and movable in a vertical direction relative to the frame, a support member connected to the movable bracket, and a driving device driving the movable bracket and the support member to move along the vertical direction. The support members of the pair of lifting devices support a bottom surface of a pallet from a pair of sides of the pallet, so that the pallet is supported on the support members and movable to different height positions in the vertical direction by the support members.
    Type: Application
    Filed: December 1, 2022
    Publication date: June 1, 2023
    Applicants: TE Connectivity Services GmbH, Tyco Electronics (Shanghai) Co., Ltd.
    Inventors: Xianghao (Jorge) Bao, Lei (Alex) Zhou, Dandan (Emily) Zhang, Rong Zhang, Roberto Francisco-Yi Lu, Ming (Reuben) Ni, Lei (Leo) Yang
  • Publication number: 20220003048
    Abstract: A lubricator assembly for servicing a tubular member includes a mounting base, a lubricant housing movably coupled to the mounting base and configured to receive lubricant from a lubricant source, a guide pin slidably disposed in the lubricant housing, a first seal positioned between the guide pin and the lubricant housing and a second seal positioned between the guide pin and the lubricant housing, and a first chamber extending between the first seal and the second seal, wherein the guide pin is configured to direct lubricant disposed in the first chamber against the tubular member in response to the tubular member engaging the guide pin.
    Type: Application
    Filed: October 15, 2019
    Publication date: January 6, 2022
    Applicant: National Oilwell Varco , L.P.
    Inventors: Andrew McKenzie, Robert Donnally, Lei Cheng, George Wu, Leo Yang