Patents by Inventor Gong Wei Zhang

Gong Wei Zhang 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).

  • Hand held power tool with locking rotatable handle
    Patent number: 9855651
    Abstract: In an angle-grinder with a rotating handle and a latch for fixing the handle in two different rotational positions, an interlock mechanism is provided for greater security against unwanted rotation of the handle when the tool is being used. The interlock mechanism is moved to a locking position by depressing the trigger to start the motor, and thus provides a safety lock backing up the latch, in case the latch is accidentally released during use. In its unlocking position the interlock mechanism may prevent actuation of the trigger when the handle is not properly aligned in one of its operating positions.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: January 2, 2018
    Assignee: TECHTRONIC POWER TOOLS TECHNOLOGY LIMITED
    Inventors: Yun Qiang Xin, Gong Wei Zhang
  • HAND HELD POWER TOOL WITH LOCKING ROTATABLE HANDLE
    Publication number: 20140158391
    Abstract: In an angle-grinder with a rotating handle and a latch for fixing the handle in two different rotational positions, an interlock mechanism is provided for greater security against unwanted rotation of the handle when the tool is being used. The interlock mechanism is moved to a locking position by depressing the trigger to start the motor, and thus provides a safety lock backing up the latch, in case the latch is accidentally released during use. In its unlocking position the interlock mechanism may prevent actuation of the trigger when the handle is not properly aligned in one of its operating positions.
    Type: Application
    Filed: March 21, 2011
    Publication date: June 12, 2014
    Applicant: Techtronic Power Tools Technology Limited
    Inventors: Yun Qiang Xin, Gong Wei Zhang