Patents by Inventor Chung Rae Lee

Chung Rae Lee 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: 9631263
    Abstract: The present invention relates to a sliding bearing with improved wear resistance which is manufactured in a sintered body type, and more particularly, to a bush type of sliding bearing that has excellent friction and wear characteristics with a shaft usually made of an iron-based material even under very poor sliding conditions of high-surface pressure, low speed, and irregularity, such that the lubrication cycle of may be extended, and also has excellent hardness such that load feed capability, plastic deformation suppression, and fatigue strength can be improved.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: April 25, 2017
    Assignee: Doosan Infracore Co., Ltd.
    Inventors: Chung Rae Lee, Dong Seob Shim, Sang Beom Kim
  • Patent number: 9222511
    Abstract: The present invention relates to a sliding bearing including a lubricating oil storing unit storing lubricating oil on the surface thereof and the sliding bearing of the present invention is provided so that the volume of the lubricating oil storing unit occupies 5 to 30 volume % of the entire volume of the sliding bearing.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: December 29, 2015
    Assignee: DOOSAN INFRACORE CO., LTD.
    Inventors: Chung Rae Lee, Ki Hwan Hong, Sang Beom Kim, Keun Chul Song
  • Patent number: 8708567
    Abstract: The present disclosure relates to a sliding bearing, and more specifically to a sliding bearing in which lubricating properties are improved by providing lubricating-oil-storage locations in the inner circumferential surface and the outer circumferential surface. The sliding bearing of the present disclosure has properties which are particularly advantageous when used under surface-pressure conditions of from 100 to 1,000 kg/cm2 and speed conditions of from 0.005 to 0.1 m/second.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: April 29, 2014
    Assignee: Doosan Infracore Co., Ltd.
    Inventor: Chung Rae Lee
  • Publication number: 20120328224
    Abstract: The present invention relates to a sliding bearing, and more particularly, a sliding bearing having an improved lubricant property by having a lubricant storage on the inner circumferential surface and the outer circumferential surface. The sliding bearing according to the present invention is advantageous to be used particularly under the conditions of the surface pressure of 100 to 1000 kg/cm2 and the speed of 0.005 to 0.1 m/sec.
    Type: Application
    Filed: December 8, 2010
    Publication date: December 27, 2012
    Applicant: DOOSAN INFRACORE CO., LTD.
    Inventor: Chung Rae Lee
  • Publication number: 20110243484
    Abstract: The present invention relates to a sliding bearing with improved wear resistance which is manufactured in a sintered body type, and more particularly, to a bush type of sliding bearing that has excellent friction and wear characteristics with a shaft usually made of an iron-based material even under very poor sliding conditions of high-surface pressure, low speed, and irregularity, such that the lubrication cycle of may be extended, and also has excellent hardness such that load feed capability, plastic deformation suppression, and fatigue strength can be improved.
    Type: Application
    Filed: October 22, 2009
    Publication date: October 6, 2011
    Applicant: DOOSAN INFRACORE CO., LTD.
    Inventors: Chung Rae Lee, Dong Seob Shim, Sang Beom Kim
  • Publication number: 20110235955
    Abstract: The present invention relates to a sliding bearing including a lubricating oil storing unit storing lubricating oil on the surface thereof and the sliding bearing of the present invention is provided so that the volume of the lubricating oil storing unit occupies 5 to 30 volume % of the entire volume of the sliding bearing.
    Type: Application
    Filed: December 1, 2009
    Publication date: September 29, 2011
    Applicant: DOOSAN INFRACORE CO., LTD.
    Inventors: Chung Rae Lee, Ki Hwan Hong, Sang Beom Kim, Keun Chul Song