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:
Oct. 31, 1989
Filed:
Jun. 02, 1988
Applicant:
Inventors:
Assignee:
Akzo nv, Arnhem, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
198847 ; 428257 ; 474267 ;
Abstract
Filte restproof conveyor belt, which has a high strength, and is particularly suitable for use in coal mines. It includes a matrix of, e.g. rubber having incorporated therein at least one layer of reinforcement fabric extending parallel to the supporting surface and the tread of the belt, the warp of the fabric extending in the longitudinal direction of the belt and including both polyamide and polyester filaments. Filtertestproof qualities are imparted to the belt by using aramid filaments as polyamide warp filaments, and by weaving the fabric in such a way that the yarn-in-fabric take-up of the aramid warp yarns, cords or cables is higher than that of the polyester warp yarns, cords or cables.