Patents by Inventor Xiaozheng QIU

Xiaozheng QIU 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).

  • Valve system and methods thereof
    Patent number: 10677359
    Abstract: A valve system comprising a valve body having an opening and an interior; a davit system comprising: a first pillar having an upper end and a lower end, wherein the lower end of the first pillar is attached to the valve body; a second pillar having an upper end and a lower end, wherein the lower end of the second pillar is attached to the valve body; a pivot arm having a first end and a second end, wherein the first end of the pivot arm is rotationally attached to the upper end of the first pillar, the second end of the pivot arm is removably attached to the upper end of the second pillar and the pivot arm straddles the valve body opening when the second end of the pivot arm touches the upper end of the second pillar; and a closure cap system comprising a closure cap, wherein a means for sealing the closure cap is disposed between the closure cap and the valve body; and a cap stem having an upper end and a lower end, wherein the lower end of the cap stem is attached to the closure cap and the upper end of the
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: June 9, 2020
    Assignee: TIGER VALVE COMPANY
    Inventors: Xiaozheng Qiu, Xianjun Lv, Wei Zhu
  • VALVE SYSTEM AND METHODS THEREOF
    Publication number: 20180135761
    Abstract: A valve system comprising a valve body having an opening and an interior; a davit system comprising: a first pillar having an upper end and a lower end, wherein the lower end of the first pillar is attached to the valve body; a second pillar having an upper end and a lower end, wherein the lower end of the second pillar is attached to the valve body; a pivot arm having a first end and a second end, wherein the first end of the pivot arm is rotationally attached to the upper end of the first pillar, the second end of the pivot arm is removably attached to the upper end of the second pillar and the pivot arm straddles the valve body opening when the second end of the pivot arm touches the upper end of the second pillar; and a closure cap system comprising a closure cap, wherein a means for sealing the closure cap is disposed between the closure cap and the valve body; and a cap stem having an upper end and a lower end, wherein the lower end of the cap stem is attached to the closure cap and the upper end of the
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: Tiger Valve Company
    Inventors: Xiaozheng QIU, Xianjun LV, Wei ZHU