Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Including application of internal fluid pressure to hollow...
Patent
1991-08-02
1992-09-22
Chiesa, Richard L.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Including application of internal fluid pressure to hollow...
2642095, 264540, 264542, 425523, 425526, 425529, B29C 4904, B29C 4964
Patent
active
051494850
ABSTRACT:
The present invention is directed to a method and apparatus for extrusion blow molding polyethylene terephthalate articles. Articles produced according to this invention may be monolayer or multilayer; they may be circumferentially or biaxially oriented; and they may be heat set.
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Chiesa Richard L.
Sabel Plastechs Inc.
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