Patents by Inventor Maoying Guo

Maoying Guo 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).

  • Relief valve
    Patent number: 6675823
    Abstract: A gap 11 between a flange 4A of a bail support member 4 and the inner circumferential surface of a sleeve member 7 functions as an orifice for restricting an oil flow downstream of a seat hole (6B). The movement of the ball support member 4 is stabilized, pressure is generated in a chamber 9 downstream of a seat hole 6B, and the override characteristics of the relief valve 1 are improved.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: January 13, 2004
    Assignee: Kayaba Industry Co., Ltd.
    Inventors: Maoying Guo, Hideki Tsuchiya, Kiyokazu Nagata
  • Relief valve
    Publication number: 20030196697
    Abstract: A gap 11 between a flange 4A of a ball support member 4 and the inner circumferential surface of a sleeve member 7 functions as an orifice for restricting an oil flow downstream of a seat hole (6B). The movement of the ball support member 4 is stabilized, pressure is generated in a chamber 9 downstream of a seat hole 6B, and the override characteristics of the relief valve 1 are improved.
    Type: Application
    Filed: May 20, 2003
    Publication date: October 23, 2003
    Inventors: Maoying Guo, Hideki Tsuchiya, Kiyokazu Nagata
  • Relief valve
    Publication number: 20020029801
    Abstract: A gap 11 between a flange 4A of a ball support member 4 and the inner circumferential surface of a sleeve member 7 functions as an orifice for restricting an oil flow downstream of a seat hole (6B). The movement of the ball support member 4 is stabilized, pressure is generated in a chamber 9 downstream of a seat hole 6B, and the override characteristics of the relief valve 1 are improved.
    Type: Application
    Filed: August 16, 2001
    Publication date: March 14, 2002
    Inventors: Maoying Guo, Hideki Tsuchiya, Kiyokazu Nagata