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:
Mar. 08, 2011
Filed:
May. 23, 2005
Hiroyuki Shiriike, Kobe, JP;
Hiroyuki Shiriike, Kobe, JP;
Bando Chemical Industries, Ltd., Kobe-shi, JP;
Abstract
A power transmission belt comprises a compression rubber layer and an adhesion rubber layer both of which are formed of vulcanizate of an ethylene-a-olefin-diene rubber compound, with a preferred ethylene content of 55-85% in the compression rubber layer. A plurality of load carrying cords formed of fiber cords adhere to and embed in the adhesion rubber layer. The compression rubber layer has a modulus of elasticity in tension of a in the lengthwise direction of the belt and a modulus of elasticity in tension of b in the widthwise direction of the belt, and a and b satisfy the relationship: 0.9≦a/b≦1.2. The compression rubber layer may contain short fibers therein in an amount of not more than 5 parts by weight in relation to 100 parts by weight of the ethylene-a-olefin-diene rubber, used in such a manner that the fibers are oriented in the lengthwise direction of the belt.