Agitating – Rubber or heavy plastic working – Stirrer is through-pass screw conveyor
Patent
1996-03-26
1998-11-17
Soohoo, Tony G.
Agitating
Rubber or heavy plastic working
Stirrer is through-pass screw conveyor
366 90, 425209, B29C 4700
Patent
active
058366806
ABSTRACT:
An extruder for extruding an associated material includes an extruder housing that has a feed section, a center section that includes a throttle section, and an outlet section with an extruder screw disposed in the extruder housing. The extruder also includes a throttle at the throttle section. The throttle has a plurality of pins that extend radially into the housing. The pins are adjusted by a cam extending around the extruder housing. The cam has an inner wall that has a plurality of cam surfaces engageable by pins. The radius of each of the cam surfaces gradually decreases from a maximum radius to a minimum radius distance. The pins have springs that urge the pins radially outward to contact the inner wall of the cam. The cam is rotated by a piston and cylinder assembly. The extruder further includes sensors for temperature, gauge, weight, and other properties of the material. The extruder also has a control apparatus for controlling the speed of the extruder and the throttle based upon any combination of temperature, gauge, weight, and production requirements while the extruder is in operation.
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Banas Mark Daniel
Burg Gary Robert
Marshall Malcolm George
Murray Thomas Alan
Turner Bruce Joseph
Lacher Frederick K
Soohoo Tony G.
The Goodyear Tire & Rubber Company
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