Patents by Inventor Kyoung Cheol Hong

Kyoung Cheol Hong 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).

  • Upper frame for construction equipment
    Patent number: 7748485
    Abstract: An upper frame for construction equipment mounted to swing on a lower driving structure is provided, in which fixing pins for supporting a boom and a boom cylinder are coupled to left and right side plates that are welded on a base plate to face each other, and a plate-shaped joint connection plate is welded on the left and right side plates and the base plate, so as to support the left and right side plates by exhibiting the rigidity and flexibility against load being transferred to the fixing pins through a working device during working.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: July 6, 2010
    Assignee: Volvo Construction Equipment Holding Sweden AB
    Inventors: Jin Woo Lee, Jai Wook Shin, Kyoung Cheol Hong
  • UPPER FRAME FOR CONSTRUCTION EQUIPMENT
    Publication number: 20090211833
    Abstract: An upper frame for construction equipment mounted to swing on a lower driving structure is provided, in which fixing pins for supporting a boom and a boom cylinder are coupled to left and right side plates that are welded on a base plate to face each other, and a plate-shaped joint connection plate is welded on the left and right side plates and the base plate, so as to support the left and right side plates by exhibiting the rigidity and flexibility against load being transferred to the fixing pins through a working device during working.
    Type: Application
    Filed: February 20, 2009
    Publication date: August 27, 2009
    Inventors: Jin Woo Lee, Jai Wook Shin, Kyoung Cheol Hong