Extruder head for making elastomer-fiber composite hose

Details Extruder head for making elastomer-fiber composite hose Extruder head for making elastomer-fiber composite hose

1979-10-17

1980-12-23

Thurlow, Jeffery R.

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

Core, pin or insert member

264108, 264209, 425380, B29D 704, B29D 2305

Patent

active

042407826

ABSTRACT:
An extruder head that includes a doubled taper conical pin with a divergent conical surface interconnected at a common base to a convergent conical surface; and a coaxial die with an interior cavity spaced from and having substantially the same contour as the pin, the die and pin together forming an annular gap with an annular inlet area, the gap conically divergent to a second annular area juxtaposed the common conical base of the pin to form a second annular area of at least twice the size of the inlet area, the gap conically convergent from the second annular area to an annular exit area.

REFERENCES:
patent: 4044799 (1977-08-01), Higbee et al.
patent: 4056591 (1977-11-01), Goettler et al.
patent: 4057610 (1977-11-01), Goettler et al.

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