Metal deforming – By extruding through orifice – By rotating impeller means
Reexamination Certificate
2007-08-21
2007-08-21
Tolan, Ed (Department: 3725)
Metal deforming
By extruding through orifice
By rotating impeller means
C072S038000
Reexamination Certificate
active
10563542
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 (1) is fed in the extrusion member (4) by means of a feed member (3) provided with a groove on its peripheral wall (2) and by an abutment (5) arranged in said groove, so that the groove (8) is protected against oxidation by arranging for at least part of the peripheral wall (2) of the feed member (3) a gas-protecting member (7). The invention also relates to said equipment.
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International Search Report for PCT/FI2004/000365, dated Oct. 28, 2004.
Morgan & Finnegan , LLP
Tolan Ed
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