Patents by Inventor Renyou Liu

Renyou Liu 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).

  • Pressure balancing device and sucker using the same
    Patent number: 10690175
    Abstract: The pressure balancing device comprises a housing, a deformation medium accommodated in the housing and capable of deforming under compression, and a sealing member movably connected with the housing and capable of deforming under pressure. When part of the deformation medium is compressed by the sealing member, the deformation medium deforms so that a part, not compressed, of the deformation medium compresses a corresponding part of the sealing member to make it protrude outwards. The pressure balancing device is simple in structure, easy to assemble and convenient to operate, and raw material cost and processing cost are saved a lot.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: June 23, 2020
    Assignee: Dongguan Yojet Industrial Co., Ltd.
    Inventor: Renyou Liu
  • Pressure Balancing Device and Sucker Using the Same
    Publication number: 20200173488
    Abstract: The pressure balancing device comprises a housing, a deformation medium accommodated in the housing and capable of deforming under compression, and a sealing member movably connected with the housing and capable of deforming under pressure. When part of the deformation medium is compressed by the sealing member, the deformation medium deforms so that a part, not compressed, of the deformation medium compresses a corresponding part of the sealing member to make it protrude outwards. The pressure balancing device is simple in structure, easy to assemble and convenient to operate, and raw material cost and processing cost are saved a lot.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 4, 2020
    Inventor: Renyou Liu