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AssigneeSociete d'Applications de Procedes Industriels et Chimiques S.A.P.I.C.
InventorGerard Y. Richard
Estimating the term…
Apparatus useful for the malaxation of a charge such as foundry sand, a ractory or abrasive particulate-like solid, powdered marble, gravel or like building materials embodying two mixing zones to first form a pre-mix of the charge and a constituent of a binder-hardener system and then form an intimate and homogeneous mixture of the pre-mix and the other constituent of the system within a few seconds followed by immediate evacuation or emptying of the resultant mixture. At least the second mixing zone is a mixing vessel with a cylindrical or conically tapered inner wall inside of which is rotated a drive shaft with radial arms, each bearing a hammer on its outer end, the hammers orbiting in the vessel with a clearance of only a few millimeters with the inner wall to attain thin film malaxation.
Apparatus useful for the malaxation of a charge and one constituent of the two constituents of a binder-hardener system to form a pre-mix followed by admixture of said pre-mix with the other constituent of said two constituents of said binder-hardener system, which apparatus comprises first malaxation means for forming a homogeneous pre-mix of said charge and said one constituent, second malaxation means embodying agitator means operable to obtain intimate and homogeneous admixture of said pre-mix and said other constituent within a few seconds followed by immediate evacuation of the resultant mixture from said second means, at least said second means being characterized by a mixing vessel having a cylindrical or conically tapered inner wall, a drive shaft extending coaxially in said vessel, a plurality of arms extending radially from said shaft, and a hammer on the radially outer end of each arm, said hammers respectively having a clearance with said inner wall, as they orbit upon rotation of said shaft, of only a few millimeters to provide thin film malaxation of the constituents of said resultant mixture.
Dependencies are inferred from the claim text.