Patents by Inventor Yei Seak Park

Yei Seak Park 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: 6581651
    Abstract: A gas filling apparatus for gas shock absorber comprises the assembly location correction unit, a gas filling unit, wherein the gas filling unit includes a rod chucking unit, a calking jig, an oil seal pushing unit, and a jig housing. A gas filling method for gas shock absorber comprises the steps of correcting the assembly location of the tube assembly and the rod guide, clamping the base shell assembly; lowering the gas filling unit primarily, lowering the rod chucking unit, lowering the collet housing device; letting the oil seal break away, filling the gas, lowering the gas filling unit secondarily and simultaneously calking primarily, and calking secondarily the base shell assembly. The apparatus and the method need not punch a hole for filling the gas at a circumference of the base shell assembly when filling the gas into a base shell assembly of the gas shock absorber.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: June 24, 2003
    Assignee: Mando Corporation
    Inventors: Woo Jin Kim, Yei Seak Park, Byung Kuk Kang
  • Publication number: 20020185193
    Abstract: A gas filling apparatus for gas shock absorber comprises the assembly location correction unit, a gas filling unit, wherein the gas filling unit includes a rod chucking unit, a calking jig, an oil seal pushing unit, and a jig housing. A gas filling method for gas shock absorber comprises the steps of correcting the assembly location of the tube assembly and the rod guide, clamping the base shell assembly; lowering the gas filling unit primarily, lowering the rod chucking unit, lowering the collet housing device; letting the oil seal break away, filling the gas, lowering the gas filling unit secondarily and simultaneously calking primarily, and calking secondarily the base shell assembly.
    Type: Application
    Filed: December 26, 2001
    Publication date: December 12, 2002
    Inventors: Woo Jin Kim, Yei Seak Park, Byung Kuk Kang