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:
Dec. 21, 1993
Filed:
Feb. 01, 1991
Bruno Maina, Valdengo, IT;
ROJ Electrotex S.p.A., Biella, IT;
Abstract
A measuring weft feeder for fluid jet looms which measures the weft yarn lengths being inserted into the loom shed is disclosed. The weft feeder comprises an electric motor for rotating a winding arm, a drum held stationary around which the arm winds up the yarn into even turns, forming a weft yarn reserve whose length is controlled by means of suitable sensors, and a yarn stopping device. The yarn stopping device includes a rod for engaging and stopping the yarn at the outlet of the feeder. The rod is movable between a withdrawn rest position and a projecting yarn stopping position in which its end moves into a cavity formed for such purpose on the drum periphery, close to the free end thereof. The drum cavity has mounted therein a plurality of bristles positioned transversely to the rod of the yarn stopping device, so that the rod may engage the bristles, crossing them at least partially, when assuming its projected position to stop the weft yarn.