Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Thomas A. Gates0
Steven H. Bowens0
James N. Valentine0
Donn L. Briskie0
David H. Steele0
Date of Patent
July 24, 2007
0Patent Application Number
108608990
Date Filed
June 4, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention includes a screw tip for an extruder screw for effecting mixing in an extruder. The screw tip has a shaft portion and at least one mixing element ring connected to the shaft portion, or a mixing element having an aperture therethrough, or both. The mixing element may have two legs connected by a top portion with the aperture between the two legs to allow flow of extrudate therethrough.
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