Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Positioning of a mold part to form a cavity or controlling...
Patent
1984-09-14
1986-07-08
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Positioning of a mold part to form a cavity or controlling...
264 404, 264 406, 264 407, 264 68, 2643284, 425140, 425144, 425149, 425166, 425379R, 425544, 425558, B29C 4502
Patent
active
045992100
ABSTRACT:
There is provided a hydraulic motor-driven extruder having raw rubber stock fed from coiled continuous strips into the extrusion portion thereof. The extruder includes a screw shaft and housing having decreasing diameter as material is transported toward the discharging extremity thereof. Surrounding this screw extruder there is provided heating bands of controlled temperature to impart additional heat. On discharge from the extruder the prepared rubber is deposited within an expandable cavity for selecting the desired volume of prepared rubber material. Once measured the prepared rubber is lifted from the cavity for insertion into the molding press.
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Thurlow Jeffery
White Douglas B.
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