Sheet feeding or delivering – Delivering – By pneumatic conveyor
Reexamination Certificate
2005-12-27
2005-12-27
Mackey, Patrick (Department: 3651)
Sheet feeding or delivering
Delivering
By pneumatic conveyor
C271S009120, C271S009130, C414S791200, C270S052090
Reexamination Certificate
active
06978994
ABSTRACT:
The present invention relates to a device for lateral movement of sheets (2) during transport thereof to a stacking device (11) such that the sheets (2) or stacks of sheets occupy laterally displaced positions relative to each other in the stacking device (11). A high-speed printer (6) is provided for printing the sheets (2) or a continuous web which is then cut to sheets (2). A vacuum generating device has vacuum means (12, 13) with vacuum openings located within vacuum holes (20) in conveyor belts (14), and is provided to generate a vacuum in said vacuum openings and vacuum holes (20) that said conveyor belts (14) can grip or engage and transport the sheets (2). A vacuum control device is provided to control the vacuum generating device to alternatingly either generate a vacuum in at least one vacuum opening in one of the vacuum means (12) or in at least one vacuum opening in the other vacuum means (13) such that one or more sheets (2) are engaged and transported of fed by one or the other conveyor belt (14) of said vacuum means (12,13).
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Mackey Patrick
Stralfors AB
Tarolli, Sundheim Covell & Tummino L.L.P.
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