Metal deforming – By extruding through orifice – With cutting
Reexamination Certificate
2006-05-23
2006-05-23
Tolan, Ed (Department: 3725)
Metal deforming
By extruding through orifice
With cutting
C072S270000
Reexamination Certificate
active
07047784
ABSTRACT:
A process and apparatus for extruding aluminum into products, wherein aluminum logs are first heated to a predetermined temperature in a furnace, then are cut into billets of predetermined lengths, and then the billets, while still hot, are extruded into predetermined products in an extruder. In the process, the logs are cut into billets with a cross cut circular saw immediately after the logs are heated and before the logs are permitted to cool to a temperature below a suitable extruding temperature. The circular saw is cooled and lubricated during the cutting to as to restrain the saw from sticking in the heated aluminum and so as to maintain the temperature of the log at the cut within a predetermined range wherein the aluminum is relatively easy to cut and waste is minimized.
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Belco Industries, Inc.
Tolan Ed
Varnum Riddering Schmidt Howlett LLP
Waters John A.
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