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:
Feb. 05, 1991
Filed:
Aug. 04, 1989
Yoshio Nitta, Tokorozawa, JP;
Masayuki Muramatsu, Tokyo, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
In a weft insertion system of an air jet loom, a weft passage in the form of a U-shaped groove opening forwardly toward a cloth fell is formed by recesses of profiled reed dents, and sub-nozzles are arranged to direct auxiliary air jets into the weft passage. In order to obtain a desirable air stream in the weft passage, and to prevent a weft yarn from flying out of the passage, an upper edge of each recess, bordering the recess on the upper side, is inclined so that a distance from an axis of swing motion of the reed becomes gradually smaller toward the open end of the recess. Furthermore, an innermost edge of each recess is inclined so as to intersect at an angle with a straight line passing through the axis of swing motion.