Textiles: weaving – Warp manipulation – Shedding
Reexamination Certificate
2004-04-07
2008-03-11
Welch, Gary L. (Department: 3765)
Textiles: weaving
Warp manipulation
Shedding
C139S00100C, C139S00100C, C139S338000, C139S099000, C139S105000, C700S140000
Reexamination Certificate
active
07341077
ABSTRACT:
A loom having a first drive motor (10), which for instance drives a batten (13), and having at least one second drive motor (44), which drives a dobby (46), is provided with a control and regulating device (48), which forms a rotational angle course for a virtual synchronization shaft of the loom and communicates such rotational angle course to respective control and regulating units (49, 51) of each of the drive motors (10, 44), which synchronize the drive motors in at least one angular position relative to the virtual synchronization shaft.
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Payette, “The Virtual Shaft Control Algorithm for Synchronized Motion Control”, Jun. 1998, American Control Conference, entire document.
Bacon & Thomas PLLC
Muromoto Jr. Robert H
Picanol N.V.
Welch Gary L.
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