Plasticating screw

Details Plasticating screw Plasticating screw

2006-04-04

2006-04-04

Soohoo, Tony G. (Department: 1723)

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

C366S082000

Reexamination Certificate

active

07021816

ABSTRACT:
A plasticating screw including a grating mixing section provided to enhance mixing of incompatible materials. The screw includes a mixing section including an inlet groove having a closed distal end, a discharge groove circumferentially spaced from the inlet groove, the discharge groove having a closed proximal end. Located between the inlet groove and the discharge groove is a land region is including at least one grating element that includes a plurality of grooves extending between the inlet groove and the discharge groove.

REFERENCES:
patent: 840107 (1907-01-01), Brittain
patent: 2680879 (1954-06-01), Schnuck et al.
patent: 3006029 (1961-10-01), Saxton
patent: 3239882 (1966-03-01), Yokana
patent: 3486192 (1969-12-01), Le Roy
patent: 3524222 (1970-08-01), Street et al.
patent: 3652064 (1972-03-01), Lehnen et al.
patent: 3941533 (1976-03-01), Gillespie
patent: 3941535 (1976-03-01), Street
patent: 4085461 (1978-04-01), Maillefer
patent: 4321229 (1982-03-01), Blakeslee, III et al.
patent: 4981364 (1991-01-01), Geyer
patent: 5215764 (1993-06-01), Davis et al.
patent: 5318358 (1994-06-01), Wobbe et al.
patent: 5356281 (1994-10-01), Katsuno et al.
patent: 5443772 (1995-08-01), Inoue et al.
patent: 5551777 (1996-09-01), Tjahjadi et al.
patent: 5719198 (1998-02-01), Young et al.
patent: 5783226 (1998-07-01), Chi
patent: 5851065 (1998-12-01), Ikeda et al.
patent: 6217804 (2001-04-01), Lieberman
patent: 6488399 (2002-12-01), Womer et al.
patent: 6497508 (2002-12-01), Womer et al.
“Recycling of Commingled Plastic Waste Using Built-In Compatibilizing Agents: A Mixed Plastic Waste Recycling Concept”; by R. Malloy, M. Condo and K. Boudreau; University of Mass Lowell, Dept. of Plastics Engineering, Lowell, Mass. 01854, 16 pages.
“Recycled HDPE/PP Blends: Effect of Plasticating Screw Type on Blend Performance”; by R.A. Malloy, Dept. of Plastics Engineering, University of Mass @ Lowell, Lowell, MA. and C.B. Thorne, Polyfil Additives Technology, Dover, N.J. ; ANTEC '97 Conference; vol. III-Special Areas 1997; pp. 3098-3101.
“Melt Filtration, Characterization, Product Selection and Design from Painted/Plated Recycled Computer Casings”; by P. Borkar and F. Lai, Plastics Engineering, University of Mass., Lowell, MA.; ANTEC '93, pp. 877-881.
“An Improved Mixing-Screw Design”; by Bruce H. Maddock, Plastics Div., Union Carbide Corp., Bound Brook, N.J. SPE Journal, Jul. 1967; Extrusion; pp. 23-29.
“Polymer Extrusion”; by Chris Rauwendaal SPE Journal, Second Reprint 1990; 8 Extruder Screw Design; p. 416.
“Union Carbide Mixer”; Spirex, Plasticating Components 2000, p. 12.
“A Reprocessing Study For Reground Painted Thermoplastic Olefin”; MS Thesis by Anthony Filip, B.S. University of Mass. Lowell (2000), 68 pages.

Affiliated with

Also associated with

Rating

Plasticating screw does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Plasticating screw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plasticating screw will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3595051