Patents by Inventor Dong Pil Lim

Dong Pil Lim 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).

  • Double-structure bush and bearing assembly comprising same
    Patent number: 9624645
    Abstract: The present disclosure relates to a double-structure bush usable in a joint portion which operates in low speed and high load, and to a bearing assembly comprising same.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: April 18, 2017
    Assignee: Doosan Infracore Co., Ltd.
    Inventors: Ji Won Choi, Dong Pil Lim
  • Double-structure bush and bearing assembly comprising same
    Patent number: 9618040
    Abstract: The present disclosure relates to a double-structure bush usable in a joint portion which operates in low-speed and high-load, and a bearing assembly comprising the same.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: April 11, 2017
    Assignee: Doosan Infracore Co., Ltd.
    Inventors: Ji Won Choi, Dong Pil Lim
  • Sintered bush
    Patent number: 9556904
    Abstract: Provided is a sintered bush including a porous metallic sintered body including: a iron (Fe) based matrix containing a martensite structure; and one or more kind of metal matrix selected from copper (Cu), tin (Sn), and nickel (Ni), in which a lubricant which has oil separation of 5 to 10% at an operational temperature of 60 to 80° C. and is semisolid or solid at room temperature is impregnated in pores of the porous sintered body.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: January 31, 2017
    Assignee: DOOSAN INFRACORE CO., LTD.
    Inventors: Dong Pil Lim, Sang Beom Kim, Dong Seob Shim
  • DOUBLE-STRUCTURE BUSH AND BEARING ASSEMBLY COMPRISING SAME
    Publication number: 20150376864
    Abstract: The present disclosure relates to a double-structure bush usable in a joint portion which operates in low speed and high load, and to a bearing assembly comprising same.
    Type: Application
    Filed: October 18, 2013
    Publication date: December 31, 2015
    Applicant: DOOSAN INFRACORE CO., LTD
    Inventors: Ji Won Choi, Dong Pil Lim
  • DOUBLE-STRUCTURE BUSH AND BEARING ASSEMBLY COMPRISING SAME
    Publication number: 20150377287
    Abstract: The present disclosure relates to a double-structure bush usable in a joint portion which operates in low-speed and high-load, and a bearing assembly comprising the same.
    Type: Application
    Filed: October 18, 2013
    Publication date: December 31, 2015
    Applicant: DOOSAN INFRACORE CO., LTD.
    Inventors: Ji Won Choi, Dong Pil Lim
  • SINTERED BUSH
    Publication number: 20110249923
    Abstract: Provided is a sintered bush including a porous metallic sintered body including: a iron (Fe) based matrix containing a martensite structure; and one or more kind of metal matrix selected from copper (Cu), tin (Sn), and nickel (Ni), in which a lubricant which has oil separation of 5 to 10% at an operational temperature of 60 to 80° C. and is semisolid or solid at room temperature is impregnated in pores of the porous sintered body.
    Type: Application
    Filed: December 17, 2009
    Publication date: October 13, 2011
    Applicant: DOOSAN INFRACORE CO., LTD.
    Inventors: Dong Pil Lim, Sang Beom Kim, Dong Seob Shim