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:
May. 24, 1983
Filed:
Jan. 07, 1981
Charles W Brouwer, East Greenwich, RI (US);
Edward L Maddox, Lexington, MA (US);
Leesona Corporation, Warwick, RI (US);
Abstract
A first sensor comprising interspersed light emitting and receiving fibers is situated at the egress slot of an air containment element on a fluid weft insertion type loom and retroreflectively senses filling yarn as it egresses from the element. The first sensor, placed along the length of the air containment tube, together with a second sensor outboard of the shed is used to discriminate filling yarn condition and the impact of those conditions on fabric quality. Signals from the first and second sensors are employed in a logical method to permit continued operation of the loom when particular faults are sensed but do not represent conditions warranting stopping of the loom, while said sensors do produce loom stopping signals when faults of predetermined values are sensed. Loom output efficiency is thus improved by allowing a controlled number of defects to enter the finished fabric.