Agitating – Rubber or heavy plastic working – Stirrer is through-pass screw conveyor
Patent
1998-12-17
2000-12-05
Cooley, Charles E.
Agitating
Rubber or heavy plastic working
Stirrer is through-pass screw conveyor
198676, B29B 780
Patent
active
061557056
ABSTRACT:
An extruder screw having at least one raised part forming a thread projecg on a core intended to be rotatably mounted inside an extruder roll in which the raised part includes a crown wall and side walls intersecting with the crown wall, the intersections between each of the side walls and the crown wall forming edges intended to cut the material, the crown wall of said raised part being provided with a coating of at least two materials of different hardnesses placed side by side on the crown wall.
REFERENCES:
patent: 3592128 (1971-07-01), French
patent: 3968533 (1976-07-01), Zentner
patent: 3998318 (1976-12-01), McAlarney
patent: 4003115 (1977-01-01), Fisher
patent: 4223601 (1980-09-01), Knuth et al.
patent: 4440076 (1984-04-01), Mansfield
patent: 4449967 (1984-05-01), Caldwell
patent: 4838700 (1989-06-01), Williamson
patent: 4949836 (1990-08-01), Schostek
patent: 4996919 (1991-03-01), Mansfield
patent: 5088397 (1992-02-01), Mansfield et al.
patent: 5156860 (1992-10-01), Kojima et al.
patent: 5348453 (1994-09-01), Baran et al.
patent: 5429581 (1995-07-01), Michaud et al.
patent: 5673618 (1997-10-01), Little
Douris Christian
Hebuterne Jean-Louis
Compagnie Generale des Etablissements Michelin - Michelin & Cie
Cooley Charles E.
LandOfFree
Extruder screw with coatings of different hardnesses thereon 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 screw with coatings of different hardnesses thereon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extruder screw with coatings of different hardnesses thereon will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-954971