Distributing chute conveyor
AssigneeElveco MSJ S.A.
InventorWilly Lhoest
Life of this patent
Estimating the term…
Abstract
A helical distributing chute conveyor for a receptacle for transferring loose varied fragile chemical and pharmaceutical products, particularly of the granular or pulverulent type. This chute conveyor, placed in a receptacle, comprises helical chute paths developed about a vertical axis; each chute path, whom cross section is straight, is inclined transversely towards the vertical axis, the angle of inclination of the chute path being calculated such that, whatever their size, the particles of material transported deviate towards the vertical axis when the centrifugal force which originally keeps them on the chute path cancels out or drops below a critical value.
Claims28
A helical distributing chute conveyor for a receptacle for transferring loose varied regularly shaped fragile pharmaceutical or chemical products, this chute conveyor comprising at least one helical chute path developing about a vertical axis, said chute path having an upper side, a back side, a cross-section and a transverse angle of inclination, wherein
- a central volume of the chute conveyor is hollowed out in the form of a well;
- each chute path is continuous and has substantially constant pitch;
- and
- each chute path forms a broad plateau, which is wide in comparison with a diameter of the receptacle, the cross section of which is substantially straight, inclined transversely towards the axis, the transverse angle of inclination of the chute path being such that the transferred regularly shaped fragile pharmaceutical or chemical products, given at the upper part of each helicoid sufficient speed for centrifugal force to keep them along the corresponding chute path, deviate towards the axis when the centrifugal force which holds them on the chute path cancels out or drops below a predetermined critical value, and
- wherein the chute paths act as baffles, taking most of the weight of the items heaped up therein, the slope of the back side of each helicoid chute path being slightly less than or equal to the repose angle of the transported regularly shaped fragile pharmaceutical or chemical product.
A helical distributing chute conveyor for a receptacle for transferring loose varied regularly shaped fragile pharmaceutical or chemical products, this chute conveyor comprising at least one helical chute path developing about a vertical axis, said chute path having an upper side, a back side, a cross-section and a transverse angle of inclination, wherein
- a central volume of the chute conveyor is hollowed out in the form of a well;
- each chute path is continuous and has substantially constant pitch;
- each chute path forms a broad plateau, the cross section of which is substantially straight, inclined transversely towards the axis, the transverse angle of inclination of the chute path being such that the transferred regularly shaped fragile pharmaceutical or chemical products, given at the upper part of each helicoid sufficient speed for centrifugal force to keep them along the corresponding chute path, deviate towards the axis when the centrifugal force which holds them on the chute path cancels out or drops below a critical value;
- each of the helical chute paths includes an outer rim;
- and
- wherein the outer rim is pierced with cut-outs, a deflector being placed upstream of each cut-out.
A helical distributing chute conveyor for a reseptacle for transferring loose varied regularly shaped fragile pharmaceutical or chemical products, this chute conveyor comprising at least one helical chute path developing about a vertical axis, said chute path having an upper side, a back side, a cross-section and a transverse angle of inclination, wherein
- a central volume of the chute conveyor is hollowed out in the form of a well;
- each chute path is continuous and has substantially constant pitch;
- each chute path forms a broad plateau, the cross section of which is substantially straight, inclined transversely towards the axis, the transverse angle of inclination of the chute path being such that the transferred regularly shaped fragile pharmaceutical or chemical products, given at the upper part of each helicoid sufficient speed for centrifugal force to keep them along the corresponding chute path, deviate towards the axis when the centrifugal force which holds them on the chute path cancels out or drops below a critical value;
- and
- wherein the chute conveyor further includes a mechanism allowing the transverse inclination of the helicoid chute path to be varied.
Dependencies are inferred from the claim text.