Plastic article or earthenware shaping or treating: apparatus – With separate and distinct upstream agitating or kneading means – Plural means being diverse – or parallel and intermeshing or...
Patent
1988-08-05
1989-08-22
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
With separate and distinct upstream agitating or kneading means
Plural means being diverse, or parallel and intermeshing or...
26421123, 425208, 425327, 425377, 425381, B29C 4738
Patent
active
048591661
ABSTRACT:
A screw extruding machine for extruding a material such as rubber, plastics or the like kneaded and blended into a sheet-like form. The screw extruding machine includes two screws horizontally and rotatably supported on a casing, a top-open hopper provided on the side of a screw base portion of the casing, an outlet opened in an axial direction of the screw on the side of a screw front end of the casing, and a roller die in proximity of the outlet, the screw having a feed portion which corresponds to a portion facing the hopper and a compression portion which corresponds to a front end side, whereby material to be extruded supplied from the hopper is extruded into a sheet-like form by the roller die from the outlet via the feed portion and the compression portion by the rotating twin screws, the hopper being positioned over the feed portion of each screw.
REFERENCES:
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patent: 3843757 (1974-10-01), Ehrenfreund et al.
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patent: 4304539 (1981-12-01), Hagiwara et al.
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patent: 4527899 (1985-07-01), Blach et al.
Asada Mitunori
Hagiwara Katunobu
Hamada Yoshihiro
Nakagawa Kazuhiko
Noda Takeoki
Chiesa Richard L.
Kabushiki Kaisha Kobe Seiko Sho
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