Pipe production line for the manufacture of plastic pipe

Details Pipe production line for the manufacture of plastic pipe Pipe production line for the manufacture of plastic pipe

1994-04-07

1995-10-24

Nguyen, Khanh P.

Plastic article or earthenware shaping or treating: apparatus

Including means advancing continuous length work through...

425190, 425325, 425380, 425388, 425393, 2642094, B29C 4790

Patent

active

054605016

ABSTRACT:
An improved pipe production line is provided having an improved manifold assembly component and an improved former component. The improved manifold assembly for use with a die in the extrusion of plastic includes a water inlet tube, a tube through which a vacuum is pulled, a water return tube, a calibration finger first section having an outer surface, the first section having at least one water receiving channel connected to the water inlet tube and the first section having a channel connected to the tube through which a vacuum is pulled, and the first section having the water return tube positioned centrally of the first section outer surface, with the first section having formed therein apertures connected to the channel connected to the tube through which a vacuum is pulled, and a calibration finger second section having an outer surface and an interior channel, with the second section having the water return tube positioned centrally of the second section outer surface, and the second section having formed therein apertures connected to the interior channel.

REFERENCES:
patent: 4573893 (1986-03-01), Waters et al.
patent: 4710337 (1987-12-01), Nordstrom
patent: 5085567 (1992-02-01), Neumann
patent: 5271786 (1993-12-01), Gorney et al.
patent: 5288218 (1994-02-01), Melkonian
patent: 5296188 (1994-03-01), Lupke

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