Sheet feeding or delivering – Feeding – Pack holders
Reexamination Certificate
2006-07-04
2006-07-04
Mackey, Patrick (Department: 3651)
Sheet feeding or delivering
Feeding
Pack holders
C271S265010, C271S090000
Reexamination Certificate
active
07070179
ABSTRACT:
A system and method for feeding and transporting documents are provided. The method includes directing airflow to a fixed location upstream of a feeder at a stack of documents such that a document trailing edge passing the fixed location causes a disruption in the airflow. The method further comprises sensing the airflow disruption to indicate detection of the document trailing edge at the fixed location. Various techniques may be utilized for sensing the airflow disruption including detecting air pressure variations, accelerations, and/or deflections that result from the disruption and airflow.
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Bakker Johan P.
Curcuri Jeremy J.
Brooks & Kushman P.C.
Mackey Patrick
Rode Lisa A.
Starr Mark T.
Unisys Corporation
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