Light inexpensive cross for mixers of concrete, mortar and similar materials
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United States of America Patent
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Jun 22, 2004
Grant Date -
Apr 17, 2003
app pub date -
Oct 11, 2002
filing date -
Oct 15, 2001
priority date (Note) -
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Abstract
The present invention relates to a cross used in mixers for concrete, mortar and similar materials, characterised in that it has a very light, inexpensive metal structure obtained with oxygen lance cutting technique and basically composed of three spokes projecting at 120.degree. from a central hub; it being provided that the end of each spoke is fixed to a mixing arm by means of a series of bolts with vertical axis in order to prevent the arm from rotating around its axis when moving through the ingredients to be mixed.
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