Plastic article or earthenware shaping or treating: apparatus – Diverse distinct type shaping means – Shaping orifice and either a downstream preform reshaping...
Patent
1974-02-06
1976-05-04
Annear, R. Spencer
Plastic article or earthenware shaping or treating: apparatus
Diverse distinct type shaping means
Shaping orifice and either a downstream preform reshaping...
425362, 425363, 425384, 425388, 156285, B29D 710
Patent
active
039543684
ABSTRACT:
Apparatus for fabricating a cellular laminated material from two plastic sheets includes a molding rotatable cylinder in contact with a pressure rotatable cylinder. Cooling water injection and air removal are accomplished within the interior of the molding cylinder. The contact portion of the two cylinders receives one of the plastic sheets. The other plastic sheet is cooled, heated and stretched prior to its being fed for embossing and laminating with the other plastic sheet on the molding cylinder. One embodiment has ends on the molding cylinder to provide an air-tight enclosure and the other embodiment is open at the ends thereof.
REFERENCES:
patent: 3142599 (1964-07-01), Chavannes
patent: 3165432 (1965-01-01), Plaskett
patent: 3421964 (1969-01-01), Arbit
patent: 3709647 (1973-01-01), Barnhart
patent: 3756884 (1973-09-01), Hagino
patent: 3837973 (1974-09-01), Asakura et al.
Annear R. Spencer
Philpitt Fred
Rosenbaum Mark
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