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. 01, 2000
Filed:
Sep. 15, 1997
Makoto Kano, Yokohama, JP;
Mamoru Sayashi, Miura, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A high temperature abrasion resistant copper alloy suitable for the material of an engine parts such as valve seats and valve guides. The copper alloy comprises aluminum in an amount ranging from 1.0 to 5.0% by weight; at least one selected from vanadium, niobium and tantalum in the group Va of the periodic table of elements, in an amount ranging from 0.1 to 5.0% by weight; and balance including copper and impurities. The copper alloy has a texture in which at least one kind of intermetallic compounds is dispersed, each intermetallic compound kind containing aluminum, at least one selected from elements of the group Va of the periodic table, and silicon.