Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Reexamination Certificate
2007-03-27
2007-03-27
Kastler, Scott (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
C266S217000, C266S220000
Reexamination Certificate
active
10170538
ABSTRACT:
A device for feeding gas in a melt of foamable metal by means of at least one pipe for producing metal foam. The gas insertion pipe projects inwardly into the melt and at the projecting end has a gas outlet having a cross section of 0.006 to 0.2 mm2and a pipe face area of less than 4.0 mm2. A flowable metal foam has gas bubbles defined by walls of a liquid metal matrix with solid reinforcing particles, and the diameter of the largest gas bubbles divided by that of the smallest gas bubbles is less than 2.5.
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Birgmann Alois
Dobesberger Franz
Flankl Herbert
Leitlmeier Dietmar
Greenblum & Bernstein P.L.C.
Huette Klein-Reichenbach Gesellschaft MBH
Kastler Scott
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