Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Reexamination Certificate
2011-07-12
2011-07-12
Gupta, Yogendra N (Department: 1744)
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
C264S138000, C264S142000, C264S146000, C264S148000, C264S149000, C264S150000, C264S151000, C264S152000, C264S512000, C264S516000, C264S531000, C264S532000, C264S534000, C425S112000, C425S113000, C425S528000, C425S529000, C425S530000, C425S531000, C425S532000
Reexamination Certificate
active
07976754
ABSTRACT:
Process for manufacturing a plastic hollow body, the process comprising the following steps:a) a tubular stream of molten plastic is extruded;b) this stream is taken up by means of a tensioning device;c) a transverse cut is made in this stream so as to create a parison having one free edge that is not taken up by the tensioning device;d) the parison is moved relative to the tensioning device so that the free edge of the parison is also taken up by the tensioning device; ande) at least one longitudinal cut is made in the parison over its entire length.Equipment suitable for implementing this process.
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Bournonville Philippe
Criel Bjorn
Tardy Pierre-François
Abraham Amjad
Gupta Yogendra N
Inergy Automotive Systems Research (S.A.)
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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