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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11039629 B1

PDFFull Text
Date of Patent:
Jun. 22, 2021

Filed:

Apr. 24, 2019

High thermal transfer hollow core extrusion screw assembly

Applicant:

Wenger Manufacturing Inc., Sabetha, KS (US);

Inventors:

LaVon Wenger, Sabetha, KS (US);

Allan C. Spellmeier, Fairview, KS (US);

Philip B. Wiltz, Sabetha, KS (US);

Assignee:

Wenger Manufacturing Inc., Sabetha, KS (US);

Attorney:

Hovey Williams LLP

Primary Examiner:

Tony G Soohoo

Int. Cl.
CPC ...
B01F 15/06 (2006.01); B01F 7/08 (2006.01); B29C 48/84 (2019.01); B29C 48/40 (2019.01); A23K 40/25 (2016.01); B01F 7/00 (2006.01); A23N 17/00 (2006.01); A23K 10/20 (2016.01); A23K 50/40 (2016.01); A23P 30/20 (2016.01);
U.S. Cl.
CPC ...
A23K 40/25 (2016.05); A23K 10/20 (2016.05); A23K 50/40 (2016.05); A23N 17/002 (2013.01); A23N 17/004 (2013.01); A23N 17/007 (2013.01); A23P 30/20 (2016.08); B01F 7/007 (2013.01); B01F 7/00416 (2013.01); B01F 7/00691 (2013.01); B01F 7/00808 (2013.01); B01F 7/00816 (2013.01); B01F 7/082 (2013.01); B01F 7/085 (2013.01); B01F 7/088 (2013.01); B01F 15/068 (2013.01); B29C 48/402 (2019.02); B29C 48/845 (2019.02); B01F 2015/062 (2013.01); B01F 2215/0024 (2013.01);
Abstract

High thermal transfer, hollow core extrusion screws () include elongated hollow core shafts () equipped with helical fighting () along the lengths thereof. The fighting () may also be of hollow construction which communicates with the hollow core shafts (). Structure () is provided for delivery of heat exchange media (e.g., steam) into the hollow core shafts () and the hollow fighting (). The fighting () also includes a forward, reverse pitch section (). The extrusion screws () are designed to be used as complemental pairs as a part of twin screw processing devices (), and are designed to impart high levels of thermal energy into materials being processed in the devices (), without adding additional moisture.

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