Patents by Inventor Longqiang Xie

Longqiang Xie 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 sensor including increased processing precision
    Patent number: 11371898
    Abstract: A pressure sensor that includes a housing with an upper housing part and a lower housing part, the upper housing part and the lower housing part being configured such that a chamber is formed between them. A diaphragm is provided between the upper housing part and the lower housing part, and dividing the chamber into an upper chamber and a lower chamber. A magnetic core is linked to the diaphragm. An operating spring includes a top end and a bottom end, the top end being supported against the upper housing part and the bottom end being supported against the magnetic core. At least one of the top end and the bottom end of the operating spring is provided with an adhesive layer. The pressure sensor enables the operating spring and the magnetic core to move integrally with each other, thereby improving the precision of the pressure sensor.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: June 28, 2022
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Longqiang Xie, Yong Lai
  • PRESSURE SENSOR
    Publication number: 20200319046
    Abstract: A pressure sensor that includes a housing with an upper housing part and a lower housing part, the upper housing part and the lower housing part being configured such that a chamber is formed between them. A diaphragm is provided between the upper housing part and the lower housing part, and dividing the chamber into an upper chamber and a lower chamber. A magnetic core is linked to the diaphragm. An operating spring includes a top end and a bottom end, the top end being supported against the upper housing part and the bottom end being supported against the magnetic core. At least one of the top end and the bottom end of the operating spring is provided with an adhesive layer. The pressure sensor enables the operating spring and the magnetic core to move integrally with each other, thereby improving the precision of the pressure sensor.
    Type: Application
    Filed: March 3, 2020
    Publication date: October 8, 2020
    Applicant: ILLINOIS TOOL WORKS, INC.
    Inventors: Longqiang Xie, Yong LAI