Vacuum control device
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United States of America Patent
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-
Apr 22, 1986
Grant Date -
N/A
app pub date -
Nov 9, 1983
filing date -
Nov 12, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for controlling the vacuum at a rotating vacuum cylinder in a highpeed paper converting machine by means of a control head having a conical shape which is supported coaxially therewith and which is secured against rotation. The conically shaped control head is telescoped into a complementarily shaped opening in the vacuum cylinder with an exact fit. The two cooperating control surfaces lie on the outer cone surface of the control head and on the inner cone surface of the vacuum cylinder.
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