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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 11162472 B1

PDFFull Text
Expired
Date of Patent:
Nov. 02, 2021

Filed:

Dec. 07, 2016

Rotor blade

Applicant:

Ntn Corporation, Osaka, JP;

Inventor:

Masahiko Suzuki, Hamamatsu, JP;

Assignee:

NTN CORPORATION, Osaka, JP;

Attorneys:

Finch & Maloney, PLLC

Michael J. Bujold

Jay S. Franklin

Primary Examiner:

J Todd Newton

Assistant Examiner:

Eric J Zamora Alvarez

Int. Cl.
CPC ...
F03D 1/06 (2006.01);
U.S. Cl.
CPC ...
F03D 1/0633 (2013.01); F03D 1/06 (2013.01); F03D 1/0641 (2013.01); F05B 2240/221 (2013.01); F05B 2240/231 (2013.01); F05B 2250/292 (2013.01); F05B 2250/71 (2013.01); Y02E 10/72 (2013.01);
Abstract

A lift type rotor blade which has a chord length gradually increased from a blade root to a maximum chord length portion being a base portion of a blade end portion, includes a leading edge, a front surface and an inclined portion formed on the blade end portion. The leading edge has a maximum thickness that is the maximum at the blade root and is gradually and continuously decreased from the blade root to a tip portion via the maximum chord length portion in a side view. The front surface is gradually inclined in a direction of a back surface from the blade root to the maximum chord length portion such that an interval between the front and back surfaces is continuously decreased. The inclined portion is inclined in a front surface direction from the maximum chord length portion.

Find Patent Forward Citations

Suzuki, Masahiko. (2021). Rotor blade (U.S. Patent No. 11162472). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11162472

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

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