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:
Aug. 21, 2007
Filed:
Jun. 14, 2004
Applicant:
Matti Leiponen, FI-00180 Helsinki, FI;
Inventor:
Matti Leiponen, FI-00180 Helsinki, FI;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21C 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for performing continuous extrusion of a metallic material, such as copper, so that the material to be extruded () is fed in the extrusion member () by means of a feed member () provided with a groove on its peripheral wall () and by an abutment () arranged in said groove, so that the groove () is protected against oxidation by arranging for at least part of the peripheral wall () of the feed member () a gas-protecting member (). The invention also relates to said equipment.