Plastic article or earthenware shaping or treating: apparatus – Stock pressurizing means operably associated with downstream...
Patent
1978-02-03
1980-08-12
Arnold, Donald J.
Plastic article or earthenware shaping or treating: apparatus
Stock pressurizing means operably associated with downstream...
425376B, 425378R, 425384, 425388, 425402, A01J 2102
Patent
active
042170869
ABSTRACT:
An improved seal is provided at the entrance of a de-airing chamber, which removes air from abrasive particulate matter as it is fed to an auger that forces the same though an extruder die to form an extrusion. The seal includes a sealing die whose wall is coaxial to the travel direction of the particulate matter entering the chamber and a sealing core that has flights for directly forcing the particulate matter through the die into the chamber while the particulate matter cooperates with the sealing die and sealing core to block the escape of vacuum from such chamber. Steam or other lubricant may be injected into the particulate matter at or upstream of the seal to facilitate the flow of particulate matter through the seal. Fluid, such as steam, also may be injected directly into the particulate matter at the pug mill as an additional lubricant and/or as an activator to enhance the binding characteristics of a binder material combined with the particulate matter.
REFERENCES:
patent: 1296472 (1919-03-01), Brand
patent: 1898381 (1933-02-01), Mooney
patent: 1987359 (1935-01-01), Brown
patent: 2078565 (1937-04-01), Durst et al.
patent: 2572063 (1951-10-01), Skipper
patent: 2617167 (1952-11-01), Johnson
patent: 3067462 (1962-12-01), Kullgren
patent: 3225715 (1965-12-01), Page
Arnold Donald J.
Plymouth Locomotive Works, Inc.
LandOfFree
Extruder with sealing die for abrasive material 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 with sealing die for abrasive material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extruder with sealing die for abrasive material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2180898