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.

Date of Patent:
Feb. 14, 2023

Filed:

Jul. 09, 2019
Applicant:

Material Answers Llc, Weston, MA (US);

Inventors:

Scott Allen Winroth, Groton, MA (US);

Christopher E. Scott, Weston, MA (US);

Assignee:

Material Answers LLC, Weston, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 48/71 (2019.01); B29C 48/21 (2019.01); B29C 48/255 (2019.01);
U.S. Cl.
CPC ...
B29C 48/71 (2019.02); B29C 48/21 (2019.02); B29C 48/255 (2019.02);
Abstract

Embodiments of the present invention include a novel interfacial surface generator (ISG) design comprised of helical channels and associated methods of using the new design. The novel design addresses processing challenges associated with conventional ISG designs used in layer multiplying coextrusion systems. Embodiments of the present invention may be used in either a static configuration or 'active' configuration. In one active configuration, two counter-rotating cylindrical rods and/or moving belts may be used to induce drag, or Couette, flow. Conveyance of materials through the ISG may be due to pressure driven flow, drag flow, or a combination of these.


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