Apparatus for producing rubber mixtures
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United States of America Patent
Stats
-
Nov 29, 1994
Issued Date -
N/A
app pub date -
Feb 15, 1994
filing date -
Sep 2, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus for producing rubber mixtures, including a ram kneader for the master batch, and disposed therebelow a ram-less kneader that operates in a batch process and to which the master batch is supplied without intermediate storage thereof. To rapidly cool the master batch in the ram-less kneader and to be able to reliably and rapidly carry out the finish mixing process, only a portion of the active surface of the rotor of the ram-less kneader is provided with a surface wear protection layer. This layer is preferably provided only in the region of the active edges of the raised portions of the rotor, while the remaining portion of the active surface is free of such a wear protection layer.
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