Metal deforming – By extruding through orifice – Expressing polymetallic-layered product
Reexamination Certificate
2007-04-17
2007-04-17
Tolan, Ed (Department: 3725)
Metal deforming
By extruding through orifice
Expressing polymetallic-layered product
C072S017300, C072S019900, C072S271000
Reexamination Certificate
active
10541172
ABSTRACT:
The method has a first material of lesser hardness acting as a rod-shaped carrier for a second material of greater hardness, each materials formed within a respective extrusion press tool and the plastic mass flow of the greater hardness material fed to the extrusion press tool for the lesser hardness material for providing a common plastic mass flow in the form of a rod-shaped body with a core and an outer region. An Independent claim for a device for manufacture of a hard metal workpiece is also included.
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Collard & Roe P.C.
Tolan Ed
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