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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 11390826 B1

PDFFull Text
Date of Patent:
Jul. 19, 2022

Filed:

Jun. 05, 2020

Grease composition, machine component, and starter overrunning clutch

Applicants:

Denso Corporation, Kariya, JP;

Dupont Toray Specialty Materials Kabushiki Kaisha, Tokyo, JP;

Inventors:

Yoshinori Fukushima, Kariya, JP;

Koji Sakakibara, Kariya, JP;

Youichi Hasegawa, Kariya, JP;

Makoto Mori, Kariya, JP;

Yuji Masamura, Hadano, JP;

Assignees:

DENSO CORPORATION, Kariya, JP;

DUPONT TORAY SPECIALTY MATERIALS KABUSHIKI KAISHA, Tokyo, JP;

Attorney:

Warner Norcross + Judd LLP

Primary Examiner:

Pamela H Weiss

Int. Cl.
CPC ...
C10M 169/06 (2006.01); C10M 135/18 (2006.01); C10M 137/10 (2006.01); C10M 141/10 (2006.01); C10M 107/50 (2006.01); F16D 7/02 (2006.01); C10M 169/00 (2006.01); C10M 117/02 (2006.01); F16D 41/067 (2006.01); C10N 10/04 (2006.01); C10N 30/08 (2006.01); C10N 40/04 (2006.01); C10N 50/10 (2006.01); C10N 10/02 (2006.01); C10N 30/06 (2006.01);
U.S. Cl.
CPC ...
C10M 169/06 (2013.01); C10M 107/50 (2013.01); C10M 117/02 (2013.01); C10M 135/18 (2013.01); C10M 137/10 (2013.01); C10M 141/10 (2013.01); C10M 169/00 (2013.01); F16D 7/02 (2013.01); F16D 41/067 (2013.01); C10M 2207/1265 (2013.01); C10M 2207/1276 (2013.01); C10M 2207/1285 (2013.01); C10M 2219/068 (2013.01); C10M 2223/045 (2013.01); C10M 2223/061 (2013.01); C10M 2229/045 (2013.01); C10M 2229/0415 (2013.01); C10M 2229/0425 (2013.01); C10M 2229/0515 (2013.01); C10N 2010/02 (2013.01); C10N 2010/04 (2013.01); C10N 2030/06 (2013.01); C10N 2030/08 (2013.01); C10N 2040/04 (2013.01); C10N 2050/10 (2013.01);
Abstract

A silicone grease composition having high friction characteristics and wear characteristics is disclosed. The silicone grease composition is provided by adding a zinc salt (B) containing, at a mass ratio from 1:99 to 99:1, a zinc dialkyldithiophosphate (B1) and a zinc dialkyldithiocarbamate (B2) as an extreme-pressure additive to a silicone oil (A). A method for transmitting torque of a clutch or a torque limiter mechanism is also disclosed.

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