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 9776232 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 03, 2017

Filed:

Sep. 07, 2012
Applicants:

Karl T. Hartwig, College Station, TX (US);

Robert E. Barber, Bryan, TX (US);

Inventors:

Karl T. Hartwig, College Station, TX (US);

Robert E. Barber, Bryan, TX (US);

Assignee:

Shear Form, Inc., Bryan, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21C 23/00 (2006.01); B21C 23/12 (2006.01);
U.S. Cl.
CPC ...
B21C 23/12 (2013.01); B21C 23/001 (2013.01);
Abstract

A system and method provide a material with uniform micro-structure. In an embodiment, an equal channel angular extrusion system includes an interior mandrel. The interior mandrel includes an expanding shear material section and a contracting shear material section. In addition, the system includes a material. The material is disposed about a portion of the interior mandrel. Moreover, the system includes a pressure application device. The pressure application device applies pressure to the material to force the material to contact the expanding shear material section to provide an expanded post-shear material section. Pressure from the pressure application device applies pressure to the material to force the expanded post-shear material section to contact the contracting shear material section to provide a contracted shear material section.


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Hartwig, Karl. (2017). Processing of hollow sections (U.S. Patent No. 9776232). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9776232

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