Patents by Inventor Hua Tian Luo

Hua Tian Luo 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).

  • Patent number: 9486864
    Abstract: A power tool that includes a motor coupled to a drive mechanism, and a removable and rechargeable battery pack coupled to the motor to selectively provide power signals to the motor. The power tool also includes a controller configured to monitor a plurality of conditions of the power tool, such as battery pack voltage, battery pack temperature, operational current, and the like. The controller is also configured to detect one or more events related to the plurality of conditions of the power tool. If the operational current of the power tool exceeds a first threshold value, a power signal duty cycle is reduced from a first duty cycle value to a second duty cycle value to limit the amount of torque the power tool is able to generate.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: November 8, 2016
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Hua Tian Luo, Shui Ming Li, Zhong Qun Liu, Michael Naughton, John S. Scott
  • Publication number: 20130097873
    Abstract: A power tool that includes a pipe holder, a knife pivotally coupled to the pipe holder, and a drive mechanism coupled to at least one of the pipe holder and the knife. The power tool also includes a motor coupled to a drive mechanism, and a removable and rechargeable battery pack coupled to the motor to selectively provide power signals to the motor. The power tool also includes a controller configured to monitor a plurality of conditions of the power tool, such as battery pack voltage, battery pack temperature, operational current, and the like. The controller is also configured to detect one or more events related to the plurality of conditions of the power tool. For example, the controller is configured to monitor the operational current of the power tool. If the operational current of the power tool exceeds a first threshold value, a power signal duty cycle is reduced from a first duty cycle value to a second duty cycle value to limit the amount of torque the power tool is able to generate.
    Type: Application
    Filed: August 28, 2009
    Publication date: April 25, 2013
    Inventors: Hua Tian Luo, Shui Ming Li, Zhong Qun Liu, Michael Naughton, John S. Scott