Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic... – Producing hollow article
Reexamination Certificate
2000-01-10
2001-04-24
Fiorilla, Christopher A. (Department: 1731)
Plastic and nonmetallic article shaping or treating: processes
Outside of mold sintering or vitrifying of shaped inorganic...
Producing hollow article
C264S603000
Reexamination Certificate
active
06221309
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a fishing weight which is used in all types of fishing, and more particularly, to a fishing weight which is manufactured with a pure earth material, to thereby prevent water pollution.
BACKGROUND OF THE INVENTION
Generally, when reel fishing or fishing on a sea rock is implemented, a fishing weight is used to cast a fishing line which is connected to a fishhook, into the water, so that the fishhook is sunk into the water and is finally disposed at a desired position. Of course, a buoyant float is used, considering the weight of the fishing weight, to support the fishhook by using its own buoyance, such that the fishhook can float on the water. At this time, the fishing weight is generally manufactured by a lead material and has an oval shape, which may be variable upon determining the shapes thereof.
Furthermore, many such weights are made of the lead material are used for a fishing net, a cultivating farm net, various kinds of fish traps and so on, which are widely used in the whole world. As a result, many such fishing weights sink into the water and are not recovered.
However, since there have been recently developed fishing equipment which have a relatively excellent durability and are well repaired at a proper time, even though a serious problem that the fishing weight made of the lead material causes water pollution has emerged over the whole world, it can be expected that the damage caused by fishing equipment will be reduced. In the preferred embodiment of the present invention, therefore, an attention on the problems caused from the fishing weights made of the lead material which are deserted into the water by fishermen will be given.
Meanwhile, when fishing is executed on the sea, river, lake, a reservoir and the like, the fishhook is often caught on a water grass, stone, a gap in the rocks, or a net, which results in the cut-off of the fishing line. At the time, the fishing weight made of the lead material is deserted into the water, along with the cut-off fishing line.
In addition, after completing the fishing, it is common that fishermen cast the fishing weight made of the lead material into the water. The fishing weights which have been deserted into the water are continuously stacked on the bottom surface and, during a very long time period, are corroded and oxidized to thereby pollute the sea or river by heavy metals(for example, the lead material). Further, such water pollution may cause a fishery ecosystem to be destroyed. As a result, this destruction hinders the development of the fishing industry and the cultivating industry on the seas along the coast or adjacent seas, river, reservoir and the like Furthermore, this destroys the natural ecosystem on the seas along the coast or adjacent seas.
Accordingly, it is natural that the fishing weight made of the lead material which have been deserted in the water should be collected, but the collecting work is not well operated for various reasons. Therefore, as time elapses, the water pollution problem becomes more and more serious, which may badly effect the balance of ecosystems on the earth.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a fishing weight for preventing environmental pollution which is manufactured with a pure earth material and even though last in the water, prevents water quality from being deteriorated or polluted, to thereby preserve an the ecosystems of the earth as well as fishery ecosystems.
Another object of the present invention is to provide a fishing weight for preventing environmental pollution which does not need additional work for collecting the fishing weight which is deserted into the water along with a fishing line which is cut off due to hooking onto an object in the water.
To achieve these and other objects according to the present invention, there is provided a method for manufacturing a fishing weight which prevents environmental pollution, including the steps of: molding the fishing weight with a ceramic material; and heating the molding material up to a predetermined temperature to convert the heated material into a pure earth material.
REFERENCES:
patent: 6058643 (2000-05-01), Marusak et al.
patent: 10-042763 (1998-02-01), None
Fiorilla Christopher A.
Notaro & Michalos P.C.
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