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. 17, 1995
Filed:
Sep. 17, 1993
Kanji Kimoto, Kobe, JP;
Bando Chemical Industries, Ltd., Kobe, JP;
Abstract
A belt which prevents generation of cracks and noises at a joint part of a canvas. Tooth faces of tooth parts of a synchronous belt are covered with the canvas. A warp yarn of the canvas is such formed that a necessary number of spun yarns or filament yarns are gathered and given a final twist at many twisting times of 1000-3000 per meter. The warp yarns of the canvas is so composed that a first pair of warp yarns made of an S twist yarn and a Z twist yarn and a second pair of warp yarns made of a Z twist yarn and an S twist yarn are arranged alternately in a belt-width direction. A weft yarn of the canvas is composed of well known spun yarns or filament yarns. The canvas is woven by the warp yarns and the weft yarns and shrunk in hot water so as to stretch in a belt-length direction. As compared with the conventional belt in which a canvas with high-stretchable crimp yarns for weft yarns is such used that the direction of the crimp yarns accords with a longitudinal direction of the belt, the number of joint parts of the canvas by which cracks are caused is reduced.