Rolling bearing, pivot assembly bearing, and disk drive apparatus
US-2024417645-A1 · Dec 19, 2024 · US
Antiwear composition and method of lubricating driveline device
US9034809B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9034809-B2 |
| Application number | US-201213605201-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 6, 2012 |
| Priority date | Mar 19, 2008 |
| Publication date | May 19, 2015 |
| Grant date | May 19, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The present invention relates to a method of driveline device by supplying to the driveline device a lubricating composition containing an oil of lubricating viscosity and an antiwear package, wherein the antiwear package includes: (a) derivatives of a carboxylic acid (typically a hydroxycarboxylic acid); and (b) a phosphorus compound. The invention further provides lubricating compositions containing an oil of lubricating viscosity and an antiwear package, wherein the antiwear package includes (a) derivatives of a carboxylic acid (typically a hydroxycarboxylic acid); and (b) an amine or metal salt of a phosphorus compound that is either (i) a hydroxy-substituted di-ester of (thio)phosphoric acid, or (ii) a phosphorylated hydroxy-substituted di- or tri-ester of (thio)phosphoric acid.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for lubricating a driveline device comprising supplying to the driveline device a lubricating composition comprising an oil of lubricating viscosity and 0.05 wt % to 5 wt % of an antiwear package, wherein the antiwear package comprises: (a) 0.25 to 1 wt % of a derivative of C11 to C18 ester or imide derivative of tartaric acid, (b) 0.05 to 2.5 wt % of a phosphorus compound, wherein the phosphorus compound is an amine of a phosphorus compound that…
Assignees
Inventors
Classifications
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9034809B2 cover?
- The present invention relates to a method of driveline device by supplying to the driveline device a lubricating composition containing an oil of lubricating viscosity and an antiwear package, wherein the antiwear package includes: (a) derivatives of a carboxylic acid (typically a hydroxycarboxylic acid); and (b) a phosphorus compound. The invention further provides lubricating compositions con…
- Who is the assignee on this patent?
- Najman Morey N, Lubrizol Corp
- What technology area does this patent fall under?
- Primary CPC classification C10M141/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 19 2015 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).