Agitating – Rubber or heavy plastic working – With specified discharge means
Patent
1986-10-23
1988-05-17
Jenkins, Robert W.
Agitating
Rubber or heavy plastic working
With specified discharge means
222413, 366 85, 366 88, 366301, B28C 716
Patent
active
047446692
ABSTRACT:
Material mixing apparatus and methods wherein a barrel defines a mixing chamber, a pair of parallel mixing shafts extend within the barrel chamber and are driven in the same direction of rotation and at the same speed of rotation, mixing elements are on each of the shafts in radial interwiping relation, the barrel has a pair of radially separated, reduced cross-section, annular discharge chambers through which the shafts extend, and one of the discharge chambers has a radial discharge port interjacent its ends, the barrel has a cross-sectionally enlarged end pass chamber through which the shafts further extend at the ends of the discharge chambers, the end pass chamber being of such cross-sectional volume relative to the conveying capacity of the other discharge chamber, as to operate in a partially starved mode at substantially atmospheric pressure, radially aligned paddle portions are on each of the shafts in the end pass chamber, shaped to wipe one another and the end pass chamber wall, one of the shafts has flights pitched to advance material from the mixing chamber through one of the discharge chambers to the end pass chamber, and the other of the shafts has helical flights thereon pitched to advance material from the mixing chamber to the radial discharge port, and also has helical flights of opposing hand pitched to advance material from the paddle portions in the end pass chamber to the radial discharge port.
REFERENCES:
patent: 3195868 (1965-07-01), Loomans
patent: 3216706 (1965-11-01), Loomans
patent: 3383015 (1968-05-01), Miler
patent: 3779522 (1973-12-01), Loomans
patent: 3802670 (1974-04-01), Okada et al.
Kowalczyk James E.
Loomans Bernard A.
Baker Perkins Inc.
Jenkins Robert W.
LandOfFree
Mixing and extruding apparatus and methods does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mixing and extruding apparatus and methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mixing and extruding apparatus and methods will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1878043