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:
Jul. 07, 2020
Filed:
Dec. 14, 2017
The Yokohama Rubber Co., Ltd., Minato-Ku, Tokyo, JP;
Atsushi Miyajima, Hiratsuka, JP;
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
A conveyor beltis formed with a belt core bodycovered by a cover rubber. The cover rubberis formed with a shock resistance performance evaluation index, i.e., the product of an elongation at break Eb, a tensile strength at break TSb, and a loss tangent tan δ of 6000 or greater. The loss tangent tan δ is the ratio between a storage modulus and a loss modulus calculated from a stress when vibrations of a predetermined frequency are applied to cover rubber. The measurement conditions of the loss tangent tan δ are determined on the basis of a speed of an impact applied under the use conditions of the conveyor belt