Patents by Inventor Chan Joo Na

Chan Joo Na 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: 7461625
    Abstract: A lubricant recovering apparatus is disclosed, which can process lubricant collected in a drain pipeline due to an oil slobbering phenomenon occurring in a diesel engine. The lubricant recovering apparatus includes a tail pipe connected to an engine of the heavy construction equipment for discharging an exhaust gas, a tap installed at a bottom point of the tail pipe, a first pipe connected to the tap at one end thereof, a joint member detachably connected to the other end of the pipe, a second pipe mounted on a lower end of the joint member and extending to an interior of an oil reservoir, a penetrating portion having a hole formed on an upper portion of the oil reservoir, through which the tail pipe passes, and a drain port formed on a lower end of the second pipe penetrating the penetrating portion and having a mesh.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: December 9, 2008
    Assignee: Volvo Construction Equipment Holding Sweden AB
    Inventors: Toshimichi Ikeda, Chan Joo Na
  • Publication number: 20070289297
    Abstract: A lubricant recovering apparatus is disclosed, which can process lubricant collected in a drain pipeline due to an oil slobbering phenomenon occurring in a diesel engine. The lubricant recovering apparatus includes a tail pipe connected to an engine of the heavy construction equipment for discharging an exhaust gas, a tap installed at a bottom point of the tail pipe, a first pipe connected to the tap at one end thereof, a joint member detachably connected to the other end of the pipe, a second pipe mounted on a lower end of the joint member and extending to an interior of an oil reservoir, a penetrating portion having a hole formed on an upper portion of the oil reservoir, through which the tail pipe passes, and a drain port formed on a lower end of the second pipe penetrating the penetrating portion and having a mesh.
    Type: Application
    Filed: June 1, 2007
    Publication date: December 20, 2007
    Inventors: Toshimichi Ikeda, Chan Joo Na