Rotary extruder with a gear pump

Details Rotary extruder with a gear pump Rotary extruder with a gear pump

1986-02-21

1989-03-21

Silbaugh, Jan H.

Plastic article or earthenware shaping or treating: apparatus

With separate and distinct upstream agitating or kneading means

Serially arranged chambers each housing a kneading or mixing...

26421121, 264349, 366 97, 366 99, 425207, 425209, 4253823, B29B 742

Patent

active

048138630

ABSTRACT:
Rotary extruder apparatus is provided comprising housing (22), recess (29) within housing (22), cylindrical rotor (30) rotatably mounted within recess (29) in housing (22), feed inlet (25), discharge outlet (52) providing fluid communication between recess (29) and diehead (26), in combination with gear pump (160) adapted to increase the pressure of material received from discharge outlet (52). Knurled rotor (30), undercut feed inlet (25), segmented rotor shafts (18, 18'), thrust rings (109, 109') made of dissimilar metals, and circumferentially spaced cartridge heaters (63) in housing (22) are also disclosed.

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