Patents by Inventor ZONGFA CHENG

ZONGFA CHENG 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).

  • Publication number: 20110299841
    Abstract: The invented apparatus is a backdrop system for displaying and storing one or several backdrops to use in a photographic studio, video productions or other instances where a backdrop may be desired and for easy carrying to on-site jobs. The backdrop is attached to a rolling system, which comprises a backdrop core in the shape of a tube or spindle and at least one roller containing an internal bi-directional drive means and a power supply unit. The rolling system is controlled by the control system containing a control unit and a command unit, thus allowing automated scrolling of different backdrop scenes and lowering a desired backdrop from a plurality of rolling systems when the appropriate scene is found. A control mechanism is applied to the backdrop system to ensure the backdrop is properly wound upon the rolling system each time.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 8, 2011
    Inventor: ZONGFA CHENG