Apparatus for feeding sheet material
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 19, 2000
Grant Date -
N/A
app pub date -
Oct 15, 1996
filing date -
Mar 18, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A suction device for feeding sheets of material comprises a housing (38) connectable by a pipe (40) to a vacuum device and having apertures (54a, 54b, 54c, 54d, 58) through which a suction effect can be created. An eccentric roller (46) imparts a corrugation to the attracted sheet. The apertures are shaped and located so that there is a boost in the suction exerted on the sheet at the time that it is distorted. Continuous and pulsed air flows are used as well as aids to separate sheets individually from a stack.
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