Special receptacle or package – Nesting or vertical stacking within container or within...
Patent
1997-03-10
1998-09-15
Fidei, David T.
Special receptacle or package
Nesting or vertical stacking within container or within...
206526, 53439, 53458, 53475, B65D 8562
Patent
active
058066802
DESCRIPTION:
BRIEF SUMMARY
This application is a 35 U.S.C. .sctn. 371 application of PCT/EP95/03093 filed Aug. 3, 1996.
BACKGROUND OF THE INVENTION
1. Field of Invention
This invention relates to a process for filling a pack with pellet-like products, more particularly detergent or cleaning pellets, and to a corresponding pack unit.
2. Discussion of Related Art
It is known that powder-form detergents or cleaners can be converted into portioned pellets by application of external pressure to the powder in the mold. Corresponding detergent or cleaning pellets are often made in cylindrical form. The surface of each cylinder is highly compacted and smooth. The diameter of such pellets has only minimal tolerances and any variations in the density of the powder product and in the pressure applied are generally reflected in only slight variations in height.
Hitherto, pellet-like products of the type in question have been loosely packed in self-supporting folding boxes and the like, for example rectangular drums.
A disadvantage of the known process is that the packing density achieved is very low on account of the loose filling. Packaging costs are high in relation to pack content. A large amount of air is packed between the individual pellets. This means that packaging, transportation and storage costs are unnecessarily high. Another major disadvantage is that, during their packaging, transportation and storage, loose pellet-like products rub heavily against one another and can break at their edges.
The problem addressed by the present invention was to provide a process which would significantly reduce packaging, transportation and storage costs and which would avoid damage to the pellet-like products.
DESCRIPTION OF THE INVENTION
According to the invention, this process is characterized in that the pellet-like products are introduced into the pack in an ordered manner.
The process according to the invention avoids disorder, frequent edge breakage and product abrasion. After conversion from a powder-form product into a pellet-like product, the pellets are arranged and introduced into the pack in an ordered manner, their free surface in the pack and hence air spaces between pellets being distinctly reduced.
In one advantageous embodiment of the invention, the pellet-like products are introduced into the pack in such a way that pellet-like products arranged beside and over one another are in linear contact with one another at their cylindrical surfaces. This has the advantage that the pellets are self-supporting in the upright position and that the flow of force under an external load, for example the stack pressure where packs are stacked one above the other, is transmitted through the cylindrical surfaces. Accordingly, by virtue of their exact and uniform diameter, the pellets all support one another in the pack and the pressure applied to each individual pellet is minimal. In addition, troublesome product abrasion and edge breakage are largely eliminated by the linear contact between pellets at their cylindrical surfaces.
In another advantageous embodiment of the invention, the pellet-like products are introduced into the pack in at least one row and at least one layer. Pack size can be varied in this way. Any number of pellets may be arranged beside or over one another. Depending on the diameter and height of the pellets, there are preferably so many rows and layers that the pack surrounding them has the external dimensions required for a module. It has been found that the ordered arrangement of the pellets provides for a considerable increase in packing density over the hitherto known loose filling of around 50% so that the amount of air packed between pellets is considerably reduced.
If a multiple-row arrangement is selected, the free surface of the pellets is further reduced so that product protection is further improved.
Another advantageous embodiment of the invention is characterized in that at least one multiple-row layer of closely adjacent pellet-like products in linear contact with one another at their cylindrical surfaces
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patent: 3302843 (1967-02-01), Sheehan
patent: 3808766 (1974-05-01), Hutchinson et al.
patent: 3998379 (1976-12-01), Myers et al.
patent: 4662150 (1987-05-01), Johnson et al.
patent: 4880115 (1989-11-01), Chaussadas
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Barthel Wolfgang
Droessler Hubert
Huchler Stefan
Kuenzel Werner
Meyer Klaus
Fidei David T.
Grandmaison Real J.
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
Szoke Ernest G.
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