Degassing means for a twin screw extruder for plastic materials

Details Degassing means for a twin screw extruder for plastic materials Degassing means for a twin screw extruder for plastic materials

1993-07-26

1994-03-29

Jenkins, Robert W.

Agitating

Rubber or heavy plastic working

With specified vent means

366 85, 425203, 425204, B29B 110, B01F 1502, B01F 1506

Patent

active

052978648

ABSTRACT:
A twin screw extruder for processing plastic material having a housing provided with a plurality of juxtaposed housing segments arranged axially in succession and defining two longitudinal, overlapping bores respectively containing two coaxially arranged extruder screws, rotatable about respective longitudinal axes, and having intermeshing threads. One of the housing segments serves as a degassing housing segment for degassing the plastic material and it is connected to a degassing chamber. The degassing housing segment has a transverse, radial opening in which an insert member is fitted, the insert member having a degassing opening providing communication between the degassing chamber and the bores in the housing. The degassing opening tapers in widening fashion in the direction from the longitudinal bores to the degassing chamber, and the degassing opening has a longitudinal axis disposed in a plane passing through the longitudinal axes of the screws. The insert member can be mounted at either or both sides of the housing and a sealing insert member is inserted in the opening in the housing segment which is to be blocked. The degassing opening is rectangular in cross-section.

REFERENCES:
patent: 3985348 (1976-10-01), Skidmore
patent: 4124307 (1978-11-01), Anisic
patent: 4260264 (1981-04-01), Maki
patent: 4902455 (1990-02-01), Wobbe
patent: 4929407 (1990-05-01), Giza

Affiliated with

Also associated with

Rating

Degassing means for a twin screw extruder for plastic materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Degassing means for a twin screw extruder for plastic materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Degassing means for a twin screw extruder for plastic materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-787211