Calibration unit for extruded plastic material
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United States of America Patent
Stats
-
Dec 8, 1992
Grant Date -
N/A
app pub date -
Dec 4, 1990
filing date -
Oct 31, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A calibrating unit for an extruder includes an inner calibrating member, and a plurality of outer calibrating members at least partially surrounding the inner calibrating member and forming a gap therebetween through which a plastic material may be extruded, the plurality of outer calibrating members including a base member and at least a first lateral member. The calibrating unit also includes an integrated joint connecting the first lateral member to the base member. The first integrated joint includes a circular cylindrical hinge pin integrally formed along a longitudinal edge of the first lateral member, and a cylindrical circular bearing shell formed in the base member. The circular cylindrical hinge pin is received within the circular cylindrical bearing shell of the base member so that the first lateral member is rotatably interconnected to the base member.
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