Agitating – Rubber or heavy plastic working – Stirrer is through-pass screw conveyor
Patent
1986-07-23
1988-06-21
Simone, Timothy F.
Agitating
Rubber or heavy plastic working
Stirrer is through-pass screw conveyor
366323, B29B 106
Patent
active
047521368
ABSTRACT:
A plasticating apparatus including a rotating screw having a helical flight disposed within and cooperating with the inner wall of a heated barrel. Resinous material is introduced to a helical valley extending along said flight to be plasticated by said screw and advanced towards an outlet opening. The screw has a metering section for working said resinous material at high temperature. The bottom surface of the helical valley in said metering section is divided into side by side relatively shallow and relatively deep levels having a depth differential therebetween. The relatively shallow and relatively deep levels extend along the bottom surface of the helical valley in side by side helical paths. The side by side helical paths have a different pitch than the pitch of the helical flight so that the helical flight periodically interrupts the helical paths. The depth of the shallow level remains substantially uniform in the metering section and the depth of the deep level also remains substantially uniform in the metering section. The depth differential between the shallow and deep levels is bridged by a descending-ascending shoulder without any intervening barrier flight. During operation, the level differential induces a continuous tumbling and mixing action upon the molten resin in the mixing section.
REFERENCES:
patent: 3698541 (1972-10-01), Barr
patent: 3867079 (1975-02-01), Kim
patent: 3870284 (1975-03-01), Kruder
patent: 3989941 (1976-11-01), Gasior et al.
patent: 4015832 (1977-04-01), Kruder
patent: 4128341 (1978-12-01), Hsu
patent: 4173417 (1979-11-01), Kruder
patent: 4197070 (1980-04-01), Koschmann
patent: 4201481 (1980-05-01), Iddon et al.
patent: 4215978 (1980-08-01), Takayama et al.
patent: 4277182 (1981-07-01), Kruder
patent: 4405239 (1983-09-01), Chung et al.
Reinckens Corinne M.
Ring Alvin E.
Simone Timothy F.
Spirex Corporation
LandOfFree
Extruder injection apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Extruder injection apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extruder injection apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-926650