Patents by Inventor Myung Hwa Hyun

Myung Hwa Hyun 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).

  • Patent number: 8567575
    Abstract: A shock absorber, in which external gas is sucked by movement of a piston rod to obtain compressed gas, which is used for inhibiting the “lag” phenomenon. A piston valve is connected to one end of a piston rod received in an inner shell and moved between rebound and compression strokes, an inner space of the inner shell being divided into a rebound chamber and a compression chamber by the piston valve. A reservoir chamber is provided in an outer shell outside of the inner shell to supply oil to the compression chamber in the rebound stroke and to recover oil in the compression stroke. The shock absorber has a high pressure tank with a high pressure chamber installed outside of the outer shell, and a self pumping unit for sucking gas and pumping it into the high pressure chamber using energy generated by movement of the piston rod.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: October 29, 2013
    Assignee: Mando Corporation
    Inventors: Woo Jin Jung, Myung Hwa Hyun
  • Patent number: 8561767
    Abstract: A shock absorber, in which external gas is sucked by movement of a piston rod to obtain compressed gas, which is used for inhibiting the “lag” phenomenon. A piston valve is connected to one end of a piston rod received in an inner shell and moved between rebound and compression strokes, an inner space of the inner shell being divided into a rebound chamber and a compression chamber by the piston valve. A reservoir chamber is provided in an outer shell outside of the inner shell to supply oil to the compression chamber in the rebound stroke and to recover oil in the compression stroke. The shock absorber has a high pressure tank with a high pressure chamber installed outside of the outer shell, and a self pumping unit for sucking gas and pumping it into the high pressure chamber using energy generated by movement of the piston rod.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: October 22, 2013
    Assignee: Mando Corporation
    Inventors: Woo Jin Jung, Myung Hwa Hyun
  • Patent number: 8556281
    Abstract: A bracket is provided to mount a shock absorber to a vehicle body. The bracket is configured to couple a distal end of a piston rod of the shock absorber to a vehicle body. The bracket is molded of a plastic material and includes a body having a recess formed thereon, the recess allowing a bush assembly to be inserted therein, and a flange extending from the body. The bracket is molded integrally with a metal insert.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: October 15, 2013
    Assignee: Mando Corporation
    Inventors: Yoon Hyun Lee, Myung Hwa Hyun
  • Publication number: 20120118688
    Abstract: A shock absorber, in which external gas is sucked by movement of a piston rod to obtain compressed gas, which is used for inhibiting the “lag” phenomenon. A piston valve is connected to one end of a piston rod received in an inner shell and moved between rebound and compression strokes, an inner space of the inner shell being divided into a rebound chamber and a compression chamber by the piston valve. A reservoir chamber is provided in an outer shell outside of the inner shell to supply oil to the compression chamber in the rebound stroke and to recover oil in the compression stroke. The shock absorber has a high pressure tank with a high pressure chamber installed outside of the outer shell, and a self pumping unit for sucking gas and pumping it into the high pressure chamber using energy generated by movement of the piston rod.
    Type: Application
    Filed: January 23, 2012
    Publication date: May 17, 2012
    Applicant: Mando Corporation
    Inventors: Woo Jin JUNG, Myung Hwa HYUN
  • Publication number: 20120055747
    Abstract: A shock absorber, in which external gas is sucked by movement of a piston rod to obtain compressed gas, which is used for inhibiting the “lag” phenomenon. A piston valve is connected to one end of a piston rod received in an inner shell and moved between rebound and compression strokes, an inner space of the inner shell being divided into a rebound chamber and a compression chamber by the piston valve. A reservoir chamber is provided in an outer shell outside of the inner shell to supply oil to the compression chamber in the rebound stroke and to recover oil in the compression stroke. The shock absorber has a high pressure tank with a high pressure chamber installed outside of the outer shell, and a self pumping unit for sucking gas and pumping it into the high pressure chamber using energy generated by movement of the piston rod.
    Type: Application
    Filed: November 16, 2011
    Publication date: March 8, 2012
    Applicant: Mando Corporation
    Inventors: Woo Jin JUNG, Myung Hwa Hyun
  • Patent number: 8100236
    Abstract: A shock absorber, in which external gas is sucked by movement of a piston rod to obtain compressed gas, which is used for inhibiting the “lag” phenomenon. A piston valve is connected to one end of a piston rod received in an inner shell and moved between rebound and compression strokes, an inner space of the inner shell being divided into a rebound chamber and a compression chamber by the piston valve. A reservoir chamber is provided in an outer shell outside of the inner shell to supply oil to the compression chamber in the rebound stroke and to recover oil in the compression stroke. The shock absorber has a high pressure tank with a high pressure chamber installed outside of the outer shell, and a self pumping unit for sucking gas and pumping it into the high pressure chamber using energy generated by movement of the piston rod.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: January 24, 2012
    Assignee: Mando Corporation
    Inventors: Woo Jin Jung, Myung Hwa Hyun
  • Publication number: 20100117325
    Abstract: A bracket is provided to mount a shock absorber to a vehicle body. The bracket is configured to couple a distal end of a piston rod of the shock absorber to a vehicle body. The bracket is molded of a plastic material and includes a body having a recess formed thereon, the recess allowing a bush assembly to be inserted therein, and a flange extending from the body. The bracket is molded integrally with a metal insert.
    Type: Application
    Filed: November 10, 2009
    Publication date: May 13, 2010
    Applicant: MANDO CORPORATION
    Inventors: Yoon Hyun Lee, Myung Hwa Hyun
  • Publication number: 20080156603
    Abstract: A shock absorber, in which external gas is sucked by movement of a piston rod to obtain compressed gas, which is used for inhibiting the “lag” phenomenon. A piston valve is connected to one end of a piston rod received in an inner shell and moved between rebound and compression strokes, an inner space of the inner shell being divided into a rebound chamber and a compression chamber by the piston valve. A reservoir chamber is provided in an outer shell outside of the inner shell to supply oil to the compression chamber in the rebound stroke and to recover oil in the compression stroke. The shock absorber has a high pressure tank with a high pressure chamber installed outside of the outer shell, and a self pumping unit for sucking gas and pumping it into the high pressure chamber using energy generated by movement of the piston rod.
    Type: Application
    Filed: November 15, 2007
    Publication date: July 3, 2008
    Applicant: Mando Corporation
    Inventors: Woo Jin Jung, Myung Hwa Hyun
  • Publication number: 20070125612
    Abstract: A dust cover partially encloses a piston rod and a cylinder of a shock absorber to prevent foreign materials from being introduced into the cylinder via the piston rod. The dust cover includes at least two covers configured to be separated vertically and have ends overlapping with and sliding on each other. A gap between the two covers is defined to be directed upward.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 7, 2007
    Applicant: MANDO CORPORATION
    Inventors: Myung Hwa Hyun, Eun Pyo Hong