Plastic and nonmetallic article shaping or treating: processes – Miscellaneous
Patent
1999-02-08
2000-11-14
Heitbrink, Jill L.
Plastic and nonmetallic article shaping or treating: processes
Miscellaneous
366 96, 366315, 3663253, 418 551, 425270, 425582, B29B 734, B29C 4546
Patent
active
061465755
ABSTRACT:
An extruder for plasticizing and extruding a material. The extruder is formed from two interfitted orbital scroll members. Material, usually in a solid state, can be fed between the scroll members. As the scroll members are rotated eccentrically with respect to one another, the material is conveyed toward the center of the scroll members within a pocket of ever decreasing volume. This applies shear energy to the material which causes melting. Heaters can be provided in the scroll members to further aid and control the melting. By the time the material reaches the central output, it is in a molten state and can be extruded through an output. A method for extruding, and an injection molding machine using such an extruder to plasticize plastic resin, such as PET, is also described.
REFERENCES:
patent: 2324168 (1943-07-01), Montelius
patent: 3226766 (1966-01-01), Von Zelewisky et al.
patent: 3248755 (1966-05-01), Plymale
patent: 3600114 (1971-08-01), Dvorak
patent: 3689181 (1972-09-01), Maxwell
patent: 4201481 (1980-05-01), Iddon et al.
patent: 4439042 (1984-03-01), Bertoglio
patent: 5200204 (1993-04-01), Horton et al.
patent: 5458471 (1995-10-01), Ni
Heitbrink Jill L.
Husky Injection Molding Systems Ltd.
LandOfFree
Apparatus and method for plasticization and extrusion employing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for plasticization and extrusion employing , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for plasticization and extrusion employing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2062069