Device to block weft yarn during cutting on a weft feeder
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United States of America Patent
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Dec 28, 1999
Grant Date -
N/A
app pub date -
Mar 25, 1998
filing date -
Sep 27, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Device to block weft yarn associated with a measuring weft feeder for fluid jet looms. The device is located downstream of the outlet yarn guide and/or of the antiballoon device of the feeder, and comprises a single elongated body which includes: an inlet cone and a cylindrical channel crossed by the weft yarn, the common axis of which is the longitudinal axis of the device; a core to block the yarn, movable into a guide perpendicularly to the axis and adapted to penetrate into the channel through an opening thereof; electromagnetic elements acting on the core against a return spring; and a bush associated to the channel, in correspondence of the opening, to form a contrast surface onto which the core engages in order to block the yarn.
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