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.:
Date of Patent:
Jan. 12, 2021
Filed:
Aug. 14, 2018
Applicant:
Toyo Tire & Rubber Co., Ltd., Itami, JP;
Inventor:
Koji Arakawa, Itami, JP;
Assignee:
TOYO TIRE CORPORATION, Itami, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 19/02 (2006.01); G01M 17/02 (2006.01);
U.S. Cl.
CPC ...
G01N 19/02 (2013.01); G01M 17/02 (2013.01);
Abstract
In a rubber friction test method of measuring a friction coefficient of a rubber test specimen by relatively moving the rubber test specimen and a test road surface in a state in which the rubber test specimen is pressed to the test road surface by applying a load, the method includes a step of measuring a resistance force acting on the rubber test specimen while accelerating or decelerating a speed of the relative movement, and a step of calculating the friction coefficient based on the applied load and the measured resistance force.