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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 11053451 B1

PDFFull Text
Date of Patent:
Jul. 06, 2021

Filed:

Feb. 20, 2018

Lubricant composition for a speed reducer, and speed reducer

Applicants:

Kyodo Yushi Co., Ltd., Fujisawa, JP;

Nabtesco Corporation, Tokyo, JP;

Inventors:

Ko Tanimura, Toyota, JP;

Ryosuke Ichimura, Kawasaki, JP;

Ryosuke Saito, Fujisawa, JP;

Hongyou Wang, Tsu, JP;

Takahide Kumagai, Tsu, JP;

Assignees:

KYODO YUSHI CO., LTD., Fujisawa, JP;

NABTESCO CORPORATION, Tokyo, JP;

Attorney:

Buchanan, Ingersoll & Rooney PC

Primary Examiner:

Vishal V Vasisth

Int. Cl.
CPC ...
C10M 169/04 (2006.01); C10M 107/02 (2006.01); C10M 129/10 (2006.01); C10M 129/54 (2006.01); C10M 129/72 (2006.01); C10M 135/10 (2006.01); C10M 135/36 (2006.01); C10N 10/04 (2006.01); C10N 20/02 (2006.01); C10N 30/02 (2006.01); C10N 30/06 (2006.01); C10N 30/08 (2006.01); C10N 30/10 (2006.01); C10N 40/04 (2006.01);
U.S. Cl.
CPC ...
C10M 169/04 (2013.01); C10M 107/02 (2013.01); C10M 129/10 (2013.01); C10M 129/54 (2013.01); C10M 129/72 (2013.01); C10M 135/10 (2013.01); C10M 135/36 (2013.01); C10M 2205/003 (2013.01); C10M 2207/028 (2013.01); C10M 2207/144 (2013.01); C10M 2207/262 (2013.01); C10M 2219/044 (2013.01); C10M 2219/046 (2013.01); C10M 2219/106 (2013.01); C10N 2010/04 (2013.01); C10N 2020/02 (2013.01); C10N 2030/02 (2013.01); C10N 2030/06 (2013.01); C10N 2030/08 (2013.01); C10N 2030/10 (2013.01); C10N 2040/04 (2013.01);
Abstract

The invention provides a lubricant composition for an eccentric oscillating planetary gear type speed reducer comprising the following components (a) to (d): (a) a base oil containing a synthetic oil; (b) at least one calcium salt selected from the group consisting of calcium salts of petroleum sulfonic acids, calcium salts of alkyl aromatic sulfonic acids, calcium salts of salicylates, calcium salts of phenates, calcium salts of oxidized waxes, overbased calcium salts of petroleum sulfonic acids, overbased calcium salts of alkyl aromatic sulfonic acids, overbased calcium salts of salicylates, overbased calcium salts of phenates, and overbased calcium salts of oxidized waxes; (c) an antioxidant; and (d) a glycerin fatty acid ester.

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