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:
Aug. 06, 2002
Filed:
Sep. 12, 2000
Applicant:
Inventors:
Takemori Takayama, Hirakata, JP;
Yoshikiyo Tanaka, Hirakata, JP;
Assignee:
Komatsu Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B22F 3/00 ;
U.S. Cl.
CPC ...
B22F 3/00 ;
Abstract
There are disclosed copper-base and/or iron-base contact materials which contain a Pb intermetallic compound dispersedly precipitated therein and which have highly improved sliding properties. Double layered contact elements improved in oil impregnation and lubricity are formed by sinter bonding the above contact materials to an iron-base metal backing, respectively. Economical producing methods for such double layered contact materials are also disclosed. In the copper-base and/or iron-base contact materials, one or more kinds of Pb intermetallic compounds are dispersedly precipitated.