Patents by Inventor Zhenxin DONG

Zhenxin DONG 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).

  • Offset base for router
    Patent number: 12285881
    Abstract: The present invention provides, in one aspect, a router including a motor unit and a base configured to selectively receive the motor unit to support the router on a work piece surface. The motor unit includes a motor and a spindle configured to output a torque supplied by the motor. The base includes an input shaft configured to selectively couple to the spindle, an output shaft laterally offset from the input shaft, and a belt. The input shaft includes a first pulley and the output shaft includes a second pulley and a tool holder. The belt wraps around the first and second pulleys to rotationally couple the input shaft to the output shaft. When the motor unit is received into the base, the spindle couples to the input shaft.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: April 29, 2025
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Tyler S. Sigafoose, Jeffery D. Spraggon, Andrew D. Van Hoorn, Zhenxin Dong, Ye Wang
  • OFFSET BASE FOR ROUTER
    Publication number: 20210237306
    Abstract: The present invention provides, in one aspect, a router including a motor unit and a base configured to selectively receive the motor unit to support the router on a work piece surface. The motor unit includes a motor and a spindle configured to output a torque supplied by the motor. The base includes an input shaft configured to selectively couple to the spindle, an output shaft laterally offset from the input shaft, and a belt. The input shaft includes a first pulley and the output shaft includes a second pulley and a tool holder. The belt wraps around the first and second pulleys to rotationally couple the input shaft to the output shaft. When the motor unit is received into the base, the spindle couples to the input shaft.
    Type: Application
    Filed: May 14, 2020
    Publication date: August 5, 2021
    Inventors: Tyler S. SIGAFOOSE, Jeffery D. SPRAGGON, Andrew D. VAN HOORN, Zhenxin DONG, Ye WANG