Patents by Inventor Na Eun An

Na Eun An 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).

  • Hinge structure of skateboard
    Patent number: 8408565
    Abstract: The present invention relates to a hinge structure of a skateboard, and more specifically, to a hinge structure of a skateboard wherein an intermediate part of the skateboard divided into two parts that are a front board and a rear board is connected by a hinge unit. Accordingly, the skateboard is twisted and the skateboard's alignment is elastically returned by a cam and spring of the hinge unit, thereby increasing propelling force and durability. Also, since assembly and disassembly of the hinge unit is easy when the skateboard is broken, convenient maintenance and repair are enabled.
    Type: Grant
    Filed: April 11, 2009
    Date of Patent: April 2, 2013
    Inventor: Na Eun An
  • HINGE STRUCTURE OF SKATEBOARD
    Publication number: 20110131759
    Abstract: The present invention relates to a hinge structure of a skateboard, and more specifically, to a hinge structure of a skateboard wherein an intermediate part of the skateboard divided into two parts that are a front board and a rear board is connected by a hinge unit. Accordingly, the skateboard is twisted and the skateboard's alignment is elastically returned by a cam and spring of the hinge unit, thereby increasing propelling force and durability. Also, since assembly and disassembly of the hinge unit is easy when the skateboard is broken, convenient maintenance and repair are enabled.
    Type: Application
    Filed: April 11, 2009
    Publication date: June 9, 2011
    Inventor: Na Eun An