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 9920809 B1

Date of Patent:

Mar. 20, 2018

Filed:

May. 08, 2013

Steering damper, a saddle riding type vehicle having the same, and a method of manufacturing the same

Applicant:

Yamaha Hatsudoki Kabushiki Kaisha, Iwata-shi, Shizuoka, JP;

Inventors:

Yasunobu Harazono, Shizuoka, JP;

Nobuo Hara, Shizuoka, JP;

Satoshi Ishikawa, Shizuoka, JP;

Hiromi Fukuda, Shizuoka, JP;

Assignee:

YAMAHA HATSUDOKI KABUSHIKI KAISHA, Shizuoka, JP;

Attorney:

Keating and Bennett, LLP

Primary Examiner:

Vishal R Sahni

Int. Cl.

CPC ...

F16F 6/00 (2006.01); B62K 21/08 (2006.01); F16F 9/53 (2006.01); F16F 9/14 (2006.01);

U.S. Cl.

CPC ...

F16F 6/00 (2013.01); B62K 21/08 (2013.01); F16F 9/145 (2013.01); F16F 9/535 (2013.01); Y10T 29/49826 (2015.01);

Abstract

A steering damper is configured to adjust a damping force of a rotor covered by a lower casing and an upper casing by changing the viscosity of a magnetic fluid with an electromagnet. Since a magnetic fluid chamber is provided with a volume compensating unit, even when the volume of the magnetic fluid expands, or air entrainment occurs, air bubbles lighter than the magnetic fluid are collected in the volume compensating unit. Thus, characteristic variations of the steering damper due to volume expansion or air entrainment of the magnetic fluid are prevented.

Find Patent Forward Citations

Harazono, Yasunobu. (2018). Steering damper, a saddle riding type vehicle having the same, and a method of manufacturing the same (U.S. Patent No. 9920809). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9920809

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