Patents by Inventor Dong Lai Gu

Dong Lai Gu 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).

  • Digging apparatus
    Patent number: 11047174
    Abstract: A digging apparatus (10, 300) is disclosed. The digging apparatus (10,300) includes a handle assembly (14, 14a, 314), a motor (32), a main switch (22, 322) electrically connected with the motor (32). The main switch (22,322) is movable between a first position in which operation of the motor (32) is allowed and a second position in which operation of the motor (32) is prevented, and a drilling bit (88, 88a, 388) is driven by the motor (32).
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: June 29, 2021
    Assignee: TECHTRONIC CORDLESS GP
    Inventors: Wai For Wong, Mark Tyson, Andrew Cameron, Dong Lai Gu, Zhi Hau Chen
  • DIGGING APPARATUS
    Publication number: 20200095830
    Abstract: A digging apparatus (10, 300) is disclosed. The digging apparatus (10,300) includes a handle assembly (14, 14a, 314), a motor (32), a main switch (22, 322) electrically connected with the motor (32). The main switch (22,322) is movable between a first position in which operation of the motor (32) is allowed and a second position in which operation of the motor (32) is prevented, and a drilling bit (88, 88a, 388) is driven by the motor (32).
    Type: Application
    Filed: February 5, 2018
    Publication date: March 26, 2020
    Inventors: Wai For Wong, Mark Tyson, Andrew Cameron, Dong Lai Gu, Zhi Hau Chen