Patents by Inventor Chao Lang Chang

Chao Lang Chang 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).

  • Wheel hub having driving mechanism
    Patent number: 7137315
    Abstract: A wheel hub for attaching to a vehicle includes a hydraulic engine received in a hub shell and attached or secured to the vehicle, for allowing the hub shell to be rotated relative to the hydraulic engine and the vehicle. The hydraulic engine includes a rotatable spindle, and a coupling device coupled between the spindle of the hydraulic engine and the hub shell, to allow the hub shell to be driven or rotated by the hydraulic engine. A plate and a casing are rotatably received in the hub shell, to rotatably support the hydraulic engine in the hub shell with the plate and the casing. A directional control device may be used to control rotational movements between the spindle of the hydraulic engine and the hub shell.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: November 21, 2006
    Inventors: Chao Lang Chang, Meng Han Hsieh
  • Wheel hub having driving mechanism
    Publication number: 20060025268
    Abstract: A wheel hub for attaching to a vehicle includes a hydraulic engine received in a hub shell and attached or secured to the vehicle, for allowing the hub shell to be rotated relative to the hydraulic engine and the vehicle. The hydraulic engine includes a rotatable spindle, and a coupling device coupled between the spindle of the hydraulic engine and the hub shell, to allow the hub shell to be driven or rotated by the hydraulic engine. A plate and a casing are rotatably received in the hub shell, to rotatably support the hydraulic engine in the hub shell with the plate and the casing. A directional control device may be used to control rotational movements between the spindle of the hydraulic engine and the hub shell.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 2, 2006
    Inventors: Chao Lang Chang, Meng Han Hsieh