Pin extruder

Details Pin extruder Pin extruder

2008-01-08

2008-01-08

Cooley, Charles E. (Department: 1723)

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

C366S081000

Reexamination Certificate

active

11580208

ABSTRACT:
A pin extruder for conveying polymeric material, especially elastomeric material, comprising a stationary extruder housing and an extruder screw rotatably mounted in the housing. A purality of radially outwardly extending pins are disposed on the extruder screw, at least a portion of which is embodied as a cylinder. The extruder housing, adjacent to the cylinder portion of the extruder screw, is provided with essentially helical conveyor paths and with openings for the pins.

REFERENCES:
patent: 3487503 (1970-01-01), Barr et al.
patent: 3751015 (1973-08-01), Hensen et al.
patent: 4491417 (1985-01-01), Hold et al.
patent: 5267847 (1993-12-01), Bohm et al.
patent: 6709147 (2004-03-01), Rauwendaal
patent: 2007/0097782 (2007-05-01), Uphus
patent: 2007/0104815 (2007-05-01), Uphus
patent: 3139024 (1982-05-01), None
patent: 3150757 (1982-07-01), None
patent: 0069271 (1983-01-01), None
patent: 62-167025 (1987-07-01), None

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