Patents by Inventor Youtao HU

Youtao HU 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).

  • Multi-functional lifting device
    Patent number: 9199104
    Abstract: A multi-functional lifting device, comprising a lifting device body; a power source; an electromagnetic DC motor; a decelerator connected to the DC motor; a main moving wheel positioned on an output axle of the decelerator; a rope element twined into the main moving wheel; a resilient wheel brake unit on one side of the main moving wheel locking the rope element into position; an intermediate wheel having a rope groove complementary to the rope groove of the main moving wheel; and a speed control module and a PCB board connected to the DC motor. The multi-functional lifting device is capable of providing controllable upward and downward movement when the power to the DC motor is connected or disconnected to the power source.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: December 1, 2015
    Assignee: Dongguan Tiannan Optical Tech. Co., Ltd.
    Inventors: Quan Nie, Youtao Hu, Yong Ge
  • Multi-Functional Lifting Device
    Publication number: 20140209409
    Abstract: A multi-functional lifting device, comprising a lifting device body; a power source; an electromagnetic DC motor; a decelerator connected to the DC motor; a main moving wheel positioned on an output axle of the decelerator; a rope element twined into the main moving wheel; a resilient wheel brake unit on one side of the main moving wheel locking the rope element into position; an intermediate wheel having a rope groove complementary to the rope groove of the main moving wheel; and a speed control module and a PCB board connected to the DC motor. The multi-functional lifting device is capable of providing controllable upward and downward movement when the power to the DC motor is connected or disconnected to the power source.
    Type: Application
    Filed: October 15, 2013
    Publication date: July 31, 2014
    Applicant: Dongguan Tiannan Optical Tech. Co., Ltd.
    Inventors: Quan NIE, Youtao HU, Yong GE