Extruder and extrusion screw therefor

Details Extruder and extrusion screw therefor Extruder and extrusion screw therefor

1998-06-23

1999-08-03

Soohoo, Tony G.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

366 89, A21C 106, B29B 714

Patent

active

059315784

ABSTRACT:
An extruder for plasticating and extruding an extrudate, and an extrusion screw used with the extruder form the subject of this invention. The extruder screw includes an elongated root body and a thread portion helically wound about the root body and extending along the length. The screw having a low compression ratio, flight with a reduced helical angle, and a conical, tapered front end section where at least one-half flight of the thread has a pitch associated therewith which is different from the pitch of the remainder of the thread and where the diameter is less than the diameter of the remainder of the root body.

REFERENCES:
patent: 3164375 (1965-01-01), Frenkel
patent: 3268633 (1966-08-01), Jansen
patent: 3551545 (1970-12-01), Overdiep
patent: 3602950 (1971-09-01), Biefeidt
patent: 3685804 (1972-08-01), Stansfield
patent: 3779033 (1973-12-01), Swanson
patent: 3795386 (1974-03-01), Carter et al.
patent: 3868093 (1975-02-01), Sokolow
patent: 3868436 (1975-02-01), Ootsuji et al.
patent: 3989433 (1976-11-01), Furman
patent: 4184772 (1980-01-01), Meyer
patent: 4383764 (1983-05-01), Sloin
patent: 4400218 (1983-08-01), Koch et al.
patent: 4484879 (1984-11-01), Heinz et al.
patent: 4557885 (1985-12-01), Kiess et al.
patent: 4632795 (1986-12-01), Huber et al.
patent: 4645445 (1987-02-01), Takanashi
patent: 4752136 (1988-06-01), Colby
patent: 4942007 (1990-07-01), Kunimoto
patent: 4944906 (1990-07-01), Colby et al.
patent: 5071256 (1991-12-01), Smith et al.
patent: 5096302 (1992-03-01), Durina
patent: 5110279 (1992-05-01), Ameniya et al.
patent: 5147722 (1992-09-01), Koslow
patent: 5164207 (1992-11-01), Durina
patent: 5178458 (1993-01-01), Hsu
patent: 5189092 (1993-02-01), Koslow
patent: 5204039 (1993-04-01), Miyasaka et al.
patent: 5249948 (1993-10-01), Koslow
patent: 5288223 (1994-02-01), Toro
patent: 5318357 (1994-06-01), Colby et al.
patent: 5397065 (1995-03-01), Shutov et al.
patent: 5439633 (1995-08-01), Durina
patent: 5655835 (1997-08-01), Pham et al.
patent: 5694833 (1997-12-01), Wenger

Affiliated with

Also associated with

Rating

Extruder and extrusion screw therefor 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 and extrusion screw therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extruder and extrusion screw therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-842908