US Patent 7246936 Dynamic mixer screw tip

Patent 7246936 was granted and assigned to CertainTeed on July, 2007 by the United States Patent and Trademark Office.

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Patent Citations Received

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US Patent 11833727 Extruder including rotating outlet and method of using the same

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Patent Inventor Names

David H. Steele0

Donn L. Briskie0

James N. Valentine0

Steven H. Bowens0

Thomas A. Gates0

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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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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=072469360

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