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:
Aug. 07, 2001
Filed:
Sep. 25, 2000
L.G.L. Electronics S.p.A., Gandino, IT;
Abstract
A device for moving and controlling a weft winding arm in weft feeders for weaving looms, comprising a switched-reluctance motor which is controlled by a first closed loop for speed control, having its own reference variable and its own measured variable, and by a second closed loop for controlling the current that circulates in the phase of the motor, also having its own reference variable and its own measured variable; the reference variable of the first loop corresponds to the rotation rate that the winding arm must assume in order to correctly restore the turns of the weft reserve, and the reference variable of the second loop is constituted by a current value computed by the first control loop.