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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 9797447 B1

PDFFull Text
Date of Patent:
Oct. 24, 2017

Filed:

Nov. 28, 2012

Bearing for vertical axis windmill and vertical axis wind power generator

Applicant:

Thk Co., Ltd., Tokyo, JP;

Inventors:

Toshiyuki Aso, Tokyo, JP;

Katsuya Iida, Tokyo, JP;

Tomoyuki Aida, Tokyo, JP;

Yuki Hayashi, Tokyo, JP;

Takashi Sakuyama, Tokyo, JP;

Assignee:

THK CO., LTD., Tokyo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Atif Chaudry

Int. Cl.
CPC ...
F16C 33/58 (2006.01); F16C 33/32 (2006.01); F16C 19/06 (2006.01); F03D 3/00 (2006.01); F03D 9/25 (2016.01); F03D 80/70 (2016.01);
U.S. Cl.
CPC ...
F16C 33/585 (2013.01); F03D 3/005 (2013.01); F03D 9/25 (2016.05); F03D 80/70 (2016.05); F16C 33/32 (2013.01); F05B 2240/211 (2013.01); F16C 19/06 (2013.01); F16C 2240/76 (2013.01); F16C 2300/14 (2013.01); F16C 2360/31 (2013.01); Y02E 10/722 (2013.01); Y02E 10/74 (2013.01);
Abstract

In a bearing for vertical axis windmill configured to rotatably support a vertical axis of a vertical axis windmill, the bearing includes a ball (), a diameter of the ball and a curvature of a rolling groove of the bearing are set to satisfy a predetermined starting torque and a load rating. For example, the curvature of the rolling groove of the bearing is 54% or more and 100% or less, and the diameter of the ball has a ratio of 20% or less with respect to a vertical shaft ().

Find Patent Forward Citations

Aso, Toshiyuki. (2017). Bearing for vertical axis windmill and vertical axis wind power generator (U.S. Patent No. 9797447). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9797447

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

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