Lubricant composition and mechanical member

US9528073B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9528073-B2
Application numberUS-86414309-A
CountryUS
Kind codeB2
Filing dateJan 23, 2009
Priority dateJan 23, 2008
Publication dateDec 27, 2016
Grant dateDec 27, 2016

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  2. Abstract

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  5. First independent claim

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Abstract

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The invention provides a lubricant composition capable of favorably preventing the members from causing hydrogen embrittlement-induced flaking when the members are operated under the conditions where the oil film is thin (namely, the metal surfaces considerably come in contact with each other). The lubricant composition used for lubricating the steel mechanical members operated by a rolling motion or rolling-sliding motion is characterized by containing a base oil and additives, the additives including an organic sulfonate rust inhibitor and a load carrying additive.

First claim

Opening claim text (preview).

The invention claimed is: 1. A lubricant composition for use in a rolling element bearing, comprising a base oil and additives, wherein the additives include an organic sulfonate rust inhibitor and a load carrying additive, wherein the base oil consists of a synthetic oil selected from the group consisting of ester based synthetic oils, poly-alpha-olefin and ether based synthetic oils, the organic sulfonate rust inhibitor is selected from the group consisting of a salt of dinony…

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What does patent US9528073B2 cover?
The invention provides a lubricant composition capable of favorably preventing the members from causing hydrogen embrittlement-induced flaking when the members are operated under the conditions where the oil film is thin (namely, the metal surfaces considerably come in contact with each other). The lubricant composition used for lubricating the steel mechanical members operated by a rolling mot…
Who is the assignee on this patent?
Endo Toshiaki, Imai Junichi, Imai Yutaka, and 1 more
What technology area does this patent fall under?
Primary CPC classification C10M169/04. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Dec 27 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).