B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/538
B29C 49/04 (2006.01) B29C 31/00 (2006.01) B29C 49/20 (2006.01)
Patent
CA 1307634
Abstract of the Disclosure A process for making a plastic container by blow molding a tubular parison of thermoplastic material, which comprises guiding a thermoplastic tube into an open divided blow mold, closing the mold and feeding pressurized air into the tubular parison squeezed off in the mold. At least one single-piece hoop ring of thermoplastic material made with the usual tolerances by injection molding is mounted on the section and bonded with the tubular parison. A container ring from an unsorted batch and having an outer collar is used in the process and is fed to a preheat station in which it is stress relieved and simultaneously planar oriented. The stress-free and oriented ring is gripped on the collar by a manipulator whose gripper is oriented in a plane corresponding to that of the container ring and the manipulator is guided into the open blow mold and the container delivered to a moveable holding means in the blow mold which engages the container ring itself or the collar.
586214
Cheval Benoit
Pfeiffer Pierre
Sigwalt Paul
Borden Ladner Gervais Llp
Sotralentz S.a.
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