Advancing material of indeterminate length – With material-responsive control means – To position material laterally
Reexamination Certificate
2011-04-05
2011-04-05
Dondero, William E (Department: 3654)
Advancing material of indeterminate length
With material-responsive control means
To position material laterally
C226S003000, C226S016000
Reexamination Certificate
active
07918372
ABSTRACT:
The present disclosure relates an apparatus for controlling the lateral offset of webs of material. The apparatus can include a support structure for supporting a roll and a mechanism for lifting the web of material off the roll. The support structure can include a fixed portion and at least one movable portion. The roll is preferably journaled to first mountings, the first mountings being attached to the movable portion of the support structure, so that the roll can be moved together with the first mountings. A potential advantage of this design is that the journal bearing of the roll on a respective shaft can be configured more easily and given smaller dimensions. According to a further aspect of the disclosure, the lifting mechanism can include at least two single rollers, rotatably journaled to two lateral supports. Such single rollers are advantageously arranged along a circular-arc plane. The web of material can thus be deflected with as large a radius as possible. This can reduce undesirable back-sway of the sagging portion of the web of material as a result of the intermittent operation. The end portions of the circular-arc plane can also extend tangentially to the provided direction of travel of the web of material, thereby potentially resulting in crease-free deflection of the web of material.
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English translation of Office Action issued on Sep. 18, 2009 in Chinese Application No. 200710089632.X.
Grimm Thomas
Palatzky Roland
Dondero William E
Fish & Richardson P.C.
Texmag GmbH Vertriebsgesellschaft
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