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:
Sep. 11, 2001
Filed:
Sep. 25, 2000
Applicant:
Inventors:
Assignee:
L.G.L. Electronics S.p.A., Gandino, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 5/922 ; B65H 5/920 ; D03D 4/734 ;
U.S. Cl.
CPC ...
B65H 5/922 ; B65H 5/920 ; D03D 4/734 ;
Abstract
A weft brake for weaving looms, comprising a rigid, fixed and flat plate made of non-magnetic material and a flexible lamina made of magnetic material, between which a weft thread slides; the flexible lamina is actuated magnetically against the rigid and fixed plate by the action of a plurality of permanent magnets which are supported by a movable yoke; the yoke is subjected to an electric actuator which moves the yoke with respect to the lamina, moving the magnets towards or away from the lamina; due to this action, the attraction applied by the magnets to the lamina varies and accordingly varies the pressure that the lamina applies to the thread.