Patents by Inventor Ka Wai Chen

Ka Wai Chen 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).

  • Detachable V-shaped visor wiper apparatus for protective helmet
    Publication number: 20080184464
    Abstract: A helmet includes a windscreen with a housing for holding a windscreen wiper device being positioned in a chin portion of the helmet. A motive power fitting is provided for a windscreen wiper head and a windscreen wiper rod. The motive power fitting is fixed inside a casing. The windscreen wiper rod coordinates with a fixing axle with one side of the windscreen wiper rod being connected to the conveying portion of the motive power and the other side of the windscreen wiper rod being connected to the windscreen wiper head. The windscreen wiper device on the windscreen wiper head is tightly fixed on the protection windscreen on the protection helmet. The windscreen wiper device includes a power supply with the output being connected to the motive power device. The helmet may be used by a driver on a rainy or foggy day for increasing safety during such weather.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 7, 2008
    Inventor: Ka Wai Chen