Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Plural sequential shaping or molding steps on same workpiece
Patent
1981-06-29
1983-05-17
Anderson, Philip E.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Plural sequential shaping or molding steps on same workpiece
264320, 264322, 264DIG66, 425393, B29C 1700, B29D 2300, B29C 112
Patent
active
043839665
ABSTRACT:
A flange can be formed on the end of a plastic pipe utilizing a die and mold which define a flange shaped mold cavity which expands under the pressure of compression plastic flow of pipe as the cavity is filled with a near molten end of the thermo-plastic pipe and the flange is being formed.
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Anderson Philip E.
Phillips Petroleum Company
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