Double flighted extrusion screw
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 18, 1992
Grant Date -
N/A
app pub date -
May 11, 1990
filing date -
May 11, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An extrusion machine includes a barrel or cylinder which houses an extrusion screw. The screw includes a feed section into which powder material is fed. The material is then fed into a mixing section, then through a transition section and then to another mixing section and finally to a section for mixing and metering the material as it is fed to the die. The extrusion screw in each of the mixing sections includes a double flight for causing the material to move back and forth in each section as it is fed to the discharge end of the barrel. The mix and meter section also includes keys to further mix the material.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully