Mold for suction/blowing system

Details Mold for suction/blowing system Mold for suction/blowing system

B - Operations, Transporting

29

C

B29C 49/28 (2006.01) B29C 49/42 (2006.01)

Patent

CA 2358249

A molding apparatus has a pair of mold halves having faces engageable together to form a nonstraight passage having an intake end and an output end, extruder means for forming a hollow plastic preform and feeding it to the intake end of the passage, pump means connected to the output end of the passage for drawing gas therefrom and thereby applying drawing the preform through the passage, and a seal carried on one of the faces, extending along the passage, and engaging the other of the faces for preventing gas flow between the faces into the passage when the mold halves are closed together.

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