The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2017
Filed:
Dec. 17, 2009
Applicants:
Dong Pil Lim, Gyeonggi-do, KR;
Sang Beom Kim, Seoul, KR;
Dong Seob Shim, Gyeonggi-do, KR;
Inventors:
Assignee:
DOOSAN INFRACORE CO., LTD., Incheon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C 33/12 (2006.01); F16C 33/10 (2006.01); F16C 33/14 (2006.01);
U.S. Cl.
CPC ...
F16C 33/12 (2013.01); F16C 33/102 (2013.01); F16C 33/128 (2013.01); F16C 33/14 (2013.01); F16C 33/145 (2013.01); F16C 33/104 (2013.01); F16C 2204/12 (2013.01); F16C 2204/60 (2013.01); F16C 2208/58 (2013.01);
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.