Patents by Inventor Kaiguo FAN

Kaiguo FAN 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).

  • RAIL WELDING METHOD AND DEVICE
    Publication number: 20240024977
    Abstract: A rail welding method and device are provided. The method includes: welding a bottom of rail, wherein welding is repeatedly performed along a first swing trajectory in a lengthwise direction of a weld seam, from one end of the bottom of rail to the other end of the bottom of rail; welding a waist of rail, wherein welding is repeatedly performed in the lengthwise direction of the weld seam along a second swing trajectory, from one end of the waist of rail, and the second swing trajectory is divided into two regions for respective welding in a width direction of the weld seam; and welding a head of rail, wherein welding is performed in the lengthwise direction of the weld seam along the first swing trajectory, between one end of the head of rail and the other end of the head of rail.
    Type: Application
    Filed: January 20, 2022
    Publication date: January 25, 2024
    Inventors: Kaiguo FAN, Zhiming ZHU, Rujun SUN, Yan ZHAO, Jihai WANG, Junliang ZHANG, Jili TIAN, Yang LIU, Chao CHEN, Guanyu JI, Jing LI, Bin YANG