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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.:

US 9200670 B1

PDFFull Text
Date of Patent:
Dec. 01, 2015

Filed:

Sep. 02, 2011

Sintered bearing

Applicants:

Fuyuki Ito, Kuwana, JP;

Natsuhiko Mori, Kuwana, JP;

Inventors:

Fuyuki Ito, Kuwana, JP;

Natsuhiko Mori, Kuwana, JP;

Assignee:

NTN CORPORATION, Osaka-shi, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Jessee Roe

Assistant Examiner:

Ngoclan T Mai

Int. Cl.
CPC ...
C22C 38/16 (2006.01); F16C 32/06 (2006.01); F16C 33/10 (2006.01); B22F 1/00 (2006.01); B22F 3/12 (2006.01); F16C 17/10 (2006.01);
U.S. Cl.
CPC ...
F16C 32/0629 (2013.01); C22C 38/16 (2013.01); F16C 33/104 (2013.01); B22F 1/0014 (2013.01); B22F 3/12 (2013.01); F16C 17/107 (2013.01); F16C 2204/10 (2013.01); F16C 2240/48 (2013.01);
Abstract

With use of a fine copper-based powder, specifically a copper-based powder that contains particles each having a diameter of 45 μm or less by 80 weight % or more, an air permeability can be significantly reduced. When this copper-based powder is used, a sintered metal can be easily formed to contain copper by 40% or less (contain iron by 60% or more) to enhance abrasion resistance, and to have an oil permeability of 1.00 g/10 min or less to increase an oil film formation rate.

Find Patent Forward Citations

Ito, Fuyuki. (2015). Sintered bearing (U.S. Patent No. 9200670). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9200670

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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