Mixer for homogenizing a mixture of products contained in a vessel
AssigneeFonderie et Ateliers des Sablons
InventorsJean Godat, Daniel Parmenon, Alain Krzywdziak, Daniel Boudin
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Abstract
A mixer for use in combination with a vessel having a detachable lid is provided which comprises a helical blade rotatably mounted upon a vertical shaft pivoting at its upper end within a bearing member disposed within the lid of said vessel, said helical blade providing a vertical mixing, and means for imparting a vibratory motion of low vertical amplitude to said blade, said vibratory movement being generated from the rotating motion of the mixer shaft.
Claims8
A mixer for homogenizing a mixture of products in a vessel having a detachable lid, comprising, a mixer shaft mounting a helical blade, having mounted at its base a scraping device for scraping the inside walls of the vessel comprising a spring exerting an essentially constant pressure on the bottom and side walls of the vessel, said helical blade being rotatively mounted at its top about a substantially vertical axis by a bearing disposed in the lid of the vessel, said mixer further comprising means for vertically moving said helical blade with a vibratory movement having a relatively small vertical amplitude, said moving means comprising a tubular coupling sleeve disposed in said bearing whose lower lip forms a notched crown presenting a sinusoidal cam configuration bearing upon at least one stop integral with said shaft, said at least one stop being maintained in contact with said notched crown by said spring of the scraping device.
A mixer for homogenizing a mixture of products in a vessel having a detachable lid, comprising a helical blade rotatively mounted by a vertical shaft mounted, at its upper end, in a bearing disposed in said detachable lid, means for imparting a vertical vibratory motion of relatively small amplitude to said blade, said helical blade being provided at its base with a scraping device which is independent of said means imparting vibratory motion and comprising a pin radially mounted in relation to said shaft on the lower edge of said helical blade so as to slide radially and pivot in relation to the lower edge of said helical blade, said pin comprising an inclined element receiving during rotation a hydrodynamic pressure F caused by the viscosity of a mixture to be mixed whose radial component F.sub.2 in relation to the mixer's axis of rotation causes said pin to slide to apply it against the lateral wall of the vessel, causing a reaction R.sub.1 and a scraping effect of material deposited on the wall and whose axial component F.sub.1 in relation to said axis causes a moment of rotation M and a reaction R.sub.2 on the bottom of the vessel, thereby providing scraping of the bottom of the vessel.
Dependencies are inferred from the claim text.