Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Controlling rate of movement of molding material or its...
Reexamination Certificate
2007-05-15
2007-05-15
Eashoo, Mark (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Controlling rate of movement of molding material or its...
C264S209300, C264S211120, C264S290200
Reexamination Certificate
active
10781679
ABSTRACT:
A method for producing a tube section from thermoplastic material, in which a tube section is extruded by means of an extruder which is provided with an extruder die having an inner core, which inner core defines an axial hollow space in the tube section, the tube section coming out of the extruder die downstream of the extruder die being internally cooled by means of an internal cooling member and externally cooled by means of an external cooling device.Immediately after the tube section leaves the extruder die, the internal cooling member brings about internal cooling of the tube. The external cooling device is positioned downstream of the internal cooling member, so that the external cooling of the tube section is brought about after the internal cooling.
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Prenger Jan Hendrik
van Lenthe Arjan Dirk
Visscher Jan
Blank Rome LLP
Eashoo Mark
Wavin B.V.
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