Suction control system for printing or duplicating machines
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 1, 1992
Grant Date -
N/A
app pub date -
Jan 9, 1991
filing date -
Jan 9, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A printing or duplicating machine has a suction control system which includes a source of vacuum and a conduit connecting the source of vacuum to a suction feeder. An operator panel is used to set a pattern of relative weight of each sheet in a stack. A controlled bleed valve is operatively associated with any of the suction feeder, source of vacuum or conduit for automatically adjusting vacuum at the suction feeder responsive to relative weight of any given sheet as selected by an operator.
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Family
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Cited Art Landscape
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