DESCRIPTION

Technical field of the invention

The present invention relates to a new housing apt to be introduced inside wooden burial caskets or used as it is for keeping, transporting and entombing a corpse.

Said housing for coffins is the upholstery or inner lining of a casket to guarantee that the fluids released by the body during the decomposition are sealed. Said housing can also be used as a real coffin, for example in case of transport of bodies after an accident from the place of the accident to the mortuary for carrying out the autopsy and the laying out of the corpse, or in case of natural calamities when it is needed to park a corpse for long, or for the transport of not laid out corpses from the entombment area to the crematorium.

As it is known, up to now, in order to guarantee the perfect tightness of cadaveric fluids or putrefying gases, the law establishes that the coffin intended for entombment is fire closed or closed by means of any other similar method. The traditional method of sealing is carried out by a welder who alloys tin and lead, as weld material, to join lid and container which are typically realized in galvanized iron. Such system is considered cheap and very reliable, but it needs good manual skills of the gravedigger who carries out the seal as well as a long time for the whole operation .

Moreover, at the state of the art there are not known more efficient systems to guarantee a perfect tightness and a rapid closing of a casket.

Therefore, there is the need for an innovation which allows a more rapid and safer sealing of a casket .

Therefore, object of the present invention is a housing comprising a bottom and a lid, separated before usage, whose sealing is guaranteed by welding the bottom to the lid by means of an original electro-fusion technology.

Summary of the invention

The present invention solves the drawbacks of the traditional system thanks to a new housing and welding by means of an original electro-fusion technology .

The housing for containing a corpse, as according to claim 1, comprises a bottom and a lid both provided with an outer peripheral edge. Between the two peripheral edges, along the whole perimeter, it is interposed a flat section bar with opened junction, of highly resistant metal, characterized by a wire frame. At the ends of the opened junction electrical cables are connected. The wire frame is configured so that, when current passes there through, said wire frame and the outer peripheral edge of the bottom and of the lid melt together, thus providing the welding and the sealing of the peripheral edges of the lid and the bottom. In other words said wire frame structure allows an extended contact between the edge of the bottom and the edge of the lid in the internal areas of the wire frame.

According to another aspect, it is described a method for welding and sealing the housing as according to the independent claim n° 8.

Further preferred and/or particularly advantageous embodiments of the housing and method for welding and sealing are described in the appended dependent claims according to the features described.

Brief description of the drawings

These and other advantages will be described in detail in the following with reference to the appended drawings, in which:

Figure 1 shows an overall axonometric view of the housing for coffins and a detail of the a flat section bar with wire frame according to the present invention;

Figure 2 shows a longitudinal view of the housing of figure 1 ;

Figure 3 shows a side view of the housing of figure 1;

Figure 4 shows a panoramic view of the rear portion of more housings, which can be stacked the one on the other one;

Figure 5 shows a panoramic view of the upper portion of more housings, which can be stacked the one on the other one.

Detailed description

As it is shown in the appended drawings, object of the present invention is a housing 100 comprising a bottom 1 and a lid 2 both in plastic material, apt to be introduced inside wooden burial caskets or used as it is for keeping, transporting and entombing a corpse. The bottom 1 and the lid 2 are clearly separated before usage. It is to be intended that the plastic material can be of any type and in particular it will comprise materials which can be used in the extrusion of plates comprising the biodegradable ones with polymers deriving from agriculture products or amino acids, or other incineration-friendly polymer materials. In an embodiment of the invention, the housing 100 is provided with two belts (not shown) , suitably positioned for manually lifting and transporting the same housing, and with a plurality of ribs 6 on the lower surface 5 of the bottom 1, as it is shown in figure 2. Said ribs 6, in addition to allow a perfect stacking of the housings the one on the other one (figure 4), allow also a safe and simple mechanic lifting of the same housings, for example by means of a lift truck.

The lid 2 has on its upper surface a relief shaping 7 which serves for safe stacking and transport as well, for example, of a number of four housings at a time (figure 5) .

The bottom 1 is moulded with a sequence of four technologies. First of all, it is carried out a thermoforming for drawing with heating the plate of plastic material by means of tubular moulds (frame) of ferrous material. The moulds can be differently dimensioned according to the dimensions of the housings 100 needed. Their cooling occurs by means of a cooling fluid forced inside a counter-mould in ferrous material having peripheral dimensions equal to the outside of the housing 100, with the aim of securing to the bottom 1 a perfectly flat edge 3 of about 30 mm, which serves to weld the lid 1 in order to obtain a perfectly tight housing 100. Then, there follows an injection moulding step, with a steel mould, with injection of polymer granules in the recess of the mould and cooling of the polymer in the mould. Finally, it is applied the rotational moulding technology which consists in introducing the plastic material in powder in a hollow mould which is rotated (generally around two axes) and heated, such that the material melts and can adhere to the walls in an homogeneously way. The following cooling occurs in the mould.

The lid 2 is moulded by using different technologies in sequence too. First of all it is used vacuum thermo-forming with plate heating. Alternatively or in sequence, there can be also used a blowing thermo-forming always with plate heating. The mould is made up of an aluminum plate with flat surface and counter-mould in ferrous material having peripheral dimensions equal to the outside of the housing 100, with a perfectly flat edge portion, so that a flat edge 4, 30 mm wide, is fixed to the lid 2. Such edge serves for the welding to the bottom 1. Then, as the case of the bottom 1, there follows an injection moulding step and a rotational moulding step. The welding of the bottom 1 to the lid 2 is carried out by means of an original technology of electro- fusion. Between the inner peripheral edge 3 of the bottom 1 and the edge 4 of the lid 2 it is interposed a wire frame section bar 10, flat, about 10 mm wide and about 1,5 mm thick, in highly resistant metal. Said a wire frame section bar 10 is preventively configured to form the whole perimeter of the housing 100, in particular of the edge 3, 4 of the bottom or lid 2, with opened junction, so that the welding of an electric cable 8, about 100 mm long, to the two ends of the wire frame section bar 10 is allowed. The wire frame section bar 10 is then fixed to the lid 2 by means of heat welding spots with weld material. The wire frame section bar 10 is configured so that, when current passes there through, said wire frame and the outer peripheral edge of the bottom and of the lid melt together, thus providing the welding and the sealing of the peripheral edges 3,4 of the lid 2 and the bottom 1. In other words, the wire frame section bar 10 allows an extended contact between the edge 3 of the bottom 1 and the edge 4 of the lid 2 in the wire frame internal areas 11. At one end of the casing 100 the electric cables 8 protrude to a length of about 100 mm so that with a simple connection to them of a small electronic device, the current is transferred through the wire frame section bar 10 to the entire surface that must be welded.

In case the housing 100 is intended for the casket interior, the welding procedure is the following: the lid as above described and with the addition of a pressure regulating valve, set to 0,2 bar, fixed on the outer surface by means of a mechanic fixing, is positioned on the bottom 1 of the housing 100, previously positioned inside the wooden casket. During the welding operation of the lid 2 to the bottom 1 it is needed that the two electric cables 8 go out from the perimeter of the housing 100, in the following the cover of the wooden casket is superimposed and closed by means of self-threading screws provided. In addition to sealing the casket, such an operation guarantees the sufficient contact pressure between the two peripheral surfaces of the lid 2 and the bottom 1 for a good result of the heat welding. After carrying out the above described operations, the two cable ends 8, which are outside the lid, are joined by means of a terminal board to an electronic device, for example a common rheostat, suitably designed to supply the electric current needed to make the metal insert, which will result interposed between the peripheral surfaces of the lid 2 and the bottom 1, become red. The electric energy to be developed for heating the metal resistance is equal to the electric power of the 220 Volt network energy developed by a 12/24 Volt battery.

The heat suitably developed by the metal insert will lead the contact materials to fusion. The supplying time control of the electric current is pre-set automatically and the supply will be stopped when the material fusion occurs. Then it will follow the cooling step. The materials, thus joined, will form a unique body thus guaranteeing the perfect sealing to guarantee what provided by the law (sealing for pressure up to 0,2 bar) .

In the following, the electric cables 8 remained outside the housing 100 will be cut to guarantee the usual aesthetic aspect.

In case the housing 100 is provided for the transport of corpses involved in accidents, i.e. the housing 100 is not housed in the wooden casket, the welding procedure is similar to what previously described with the sole difference that without pressure exerted by the cover of the casket, the same pressure is guaranteed by means of suitable elastic clamps along the whole perimeter of the housing 100.

In addition to the embodiments of the invention, as above described, it is to be intended that there exist many other variants. Further, it is to be intended that said embodiments are only example and do not limit the scope of the invention and its possible applications or configurations. On the contrary, even if the above description gives the experts in the field the possibility to realize the present invention at least according to one example configuration thereof, it is to be intended that many variations of the elements described can be made without departing from the scope of the invention encompassed by the appended claims, literally interpreted and/or legal equivalents thereof .