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.:
Date of Patent:
Jun. 05, 2012
Filed:
Dec. 11, 2007
Applicant:
Frank F. Kraft, Albany, OH (US);
Inventor:
Frank F. Kraft, Albany, OH (US);
Assignee:
Ohio University, Athens, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21C 23/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus and method are provided for extruding a micro-channel tube () from a non-aluminum metal or alloy such as copper. The micro-channel tube is formed by simultaneously extruding two rectangular shaped billets () to form a top portion of the micro-channel tube and a bottom portion of the micro-channel tube in parallel. The top and bottom portions are then joined during the extrusion process (e.g., within a die assembly) to form the micro-channel tube ().