BRPI0803245A2 - constructive arrangement introduced for freshwater fish farming equipment in general - Google Patents

Abstract

CONSTRUCTIVE PROVISION INTRODUCED IN SWEET WATER FISHING EQUIPMENT IN GENERAL. Invention patent for a type of modulated floating pond to be used for raising fish in freshwater bodies in general (such as lakes, river backwaters and dams). It is about a cage-shaped device in whose constructive arrangement a "drill" type tool and a method for treating the wood to be employed in the construction of this device is used. The device is basically made up of a floating circular structure, developed to allow the creation and harvesting of fish, built according to the best practices of obtaining the quality of fish, functional, durable, where materials resistant to the impact of aquatic predators were employed. used in large natural and artificial bodies of water. Such a package consists of: a ring (3) located at the top of the cage; four 3/8 construction iron support rods (1); a flotation coupling (2) located at the top of the cage; hollow screen-like body boards (5) which are riveted to the upper (3) and lower (4) rims forming a cylinder and imparting high impact resistance to predators; bottom made of hollow (6) and wedge-shaped planks with upper end fixed to the lower rim (4) by means of a thin mox steel plate, allowing the other end to be opened (9); lower end joined by a flexible steel cable coated with plastic material (7), fitted to a wooden club (8); fishing handle (10) for lifting the body cage; nylon mesh (11) strategically installed over the support rods (1) to prevent fish from escaping.

Description

DESCRIPTION REPORT OF THE INVENTION PATENT "CONSTRUCTION PROVISION INTRODUCED IN SWEET WATER PARAPISCULTURE EQUIPMENT"

This application refers to a cage to be used in fish farming in freshwater bodies in general (such as lakes, backwaters and dams), aiming to provide equipment capable of withstanding the weather and aggression of large aquatic animals. This device is part of the fish farming sector, more specifically the technological sector of freshwater fish farming equipment in general.

The present invention is a modulated floating pond type, in whose constructive arrangement a "drill" type tool and a woodcutting method for this purpose are to be used for raising fish in freshwater bodies in general (such as lakes, backwaters of rivers and dams). They basically consist of a floating circular structure, developed to allow the creation and fishing of fish, built according to the best practices of obtaining the quality of the fish, functional and durable, which were used materials resistant to the impact of aquatic predators, and can be used in large bodies of fish. 'natural and artificial water.

The practice of fish farming using net ponds, especially in Amazonia, is a common practice and there are several types of devices known for such use. In some mesh tanks, such as that described in Utility Model Patent MU7701498-7, a weather-resistant synthetic fabric mesh tank is claimed to be suitably closed, and its creases (vulcanized) with the same fabric material and reinforced by stitching. wire safety of the same material. The continuous float floating net-tank is composed of a continuous float all over its upper perimeter and a continuous anchor in its lower perimeter. It also has a feeding window, pantry and fish handling and structural locks and support to the screen, fixed to the float and structural lock fixed to the sinker.

US 4890413 describes a floating container for trapping fish with flexible mesh opening, enclosed upper and lower walls, forming a chamber for accommodating fish in water, an upper ring with floating material (attached to the top of the side wall), causing the container to float. in the body of the water, and a lower anelin attached to the bottom of the sidewalls, maintaining the cylindrical shape of the container in the water. In addition, it has an opening into the chamber connected to an open position with elastic cords, a wire to close the opening, a device closing the wires and keeping the upper wall in the closed position. When the device is closed, the elastic cords are released by opening automatically to the container. Multiple wires from the sidewall allow the container to float in shallow water, not contacting the bottom or vegetation of the body of water.

With regard to the diversity of tank shapes on the market, the MU 7102738-6 utility model also refers to a prism-shaped mesh tank, with sides and the bottom of a thin mesh flexible mesh, having at the top the cables that are connected. piling buoys or platforms form and support the rig. Weights attached to the bottom corners keep the sides straight and the bottom required. When using floats, they must be anchored to the underwater water through "poitas" or anchors. The same is true when using floating platforms. The net tank is for use in natural springs, artificial reservoirs and sheltered coves and seas.

It is well known that the specific objectives of existing net cages on the market have application characteristics aimed at solving the most different types of problems that may arise in fish farming practice. Aiming at the tank transport solution, MU 84030720 cites a detachable floating structure and cap, composed of straight and rounded "L" profiles, which are assembled with screws, and no welding is used in manufacturing, this assembly and disassembly, facilitates the transport of ease of handling, harvesting and disinfection, float support, also known as float support arm, allows the float to be moved without tools because it has a finger-type key, manufactured in a triangular shape to enable economy of feedstock

The utility model patent MU 84026782 discloses an improvement applied to the net tank, comprising a quadratic shaped main tube, molded support tubes for fixing floats and a molded and articulated datamp tube, both attached to the main containment tube for conformation of fish intended for intensive fish farming. The construction of these structures with the fixation of floats, screens or confinement nets allows the adaptation and installation of these cultivation systems, called net-tanks, within water resources, thus facilitating the storage, handling and harvesting of fish.

Focusing on the Amazon region, net-pond structures are usually made up of materials such as bamboo and PVC pipes, wood, aluminum and thin-meshed structures. These structures are now supported by independent floats, or by large wood logs. Even though they come in a variety of shapes and sizes made up of various materials, traditional mesh tanks face a number of drawbacks. Firstly, large Amazonian fish (such as pyiraiba, pirarara, jaú and pirarucu) tend to break nets easily. The redfish tanks also do not have a device to prevent the escape of captured animals and to protect from aquatic predators (such as alligators and porpoises) and winged ones. In addition, due to the materials employed and the way these tanks are designed, there is low resistance to agitation of river waters and local storms.

Based on the foregoing, it is an object of the present invention to develop a rigid structure floating circular cage for use in fish farming in general freshwater bodies (such as lakes, river backwaters and dams) that is both functional , tough and durable. In addition, because it is built with raw materials found in abundance in the Amazon region and has easily performed procedures, it is possible that this constructive arrangement is constructed with a reduced value and industrial scale. This constructive arrangement will be carried out in such a way that its industrial production can be made possible by means of easily executed procedures, with regional materials especially suited to the conditions of use.

It is also an object of the invention to characterize a caged constructive arrangement in modulated floating pond type net ponds, which will have the qualities of: safe and lasting containment of fingerlings and fish to be kept there, reinforced bottom, protective cover against winged predators, Protective banding against escape of fish capable of jumping out of water; solidity and strength of the floats, without overweight and long durability and agile handling of the spaces created. The objectives of the present invention will be fully achieved by constructing a cylinder-shaped wood and iron cage and the inverted pyramid-shaped bottom that allows immediate harvesting

The objectives of the present invention will be fully achieved by constructing a cylinder-shaped wood and iron cage and the inverted pyramid-shaped bottom allowing for immediate harvesting, as shown in Figure 1. In it, it can be observed that the upper part of the cage has a rim (3) with four 3/8 construction iron support rods (1). These rods are located in a plane superior to the rim where the floating coupling (2) is fixed. The hollow mesh boards (5) are riveted into the upper (3) and lower (4) rims forming a cylinder, which gives it great resistance to the impact of predators. The bottom is made up of hollow boards (6) cut into a wedge-shaped upper end fixed to the lower rim (4) by a thin stainless steel plate allowing the other end (9) and lower end to be joined together by a flexible steel cable coated with plastic material (7), fitted to a wooden club (8). The cable is pulled manually, which at the end of the work, allows the bottom to be opened for harvesting. This form has the purpose of reducing the suffering of the fish at the time of slaughter, because the time to remove the cage from the water and release the fish to the cold container, slaughter by thermal shock should be as fast as possible, never exceeding 60 seconds. The faster this operation is completed, the smaller the volume of toxins released into the bloodstream and consequently into the muscles of the fish due to the stress caused when removed from their habitat and left to die due to lack of oxygen. Harvesting is performed by hanging the cage by a hoist system. The system lifts the cage by the fishing handle (10) and when out of water and over a container with ice water the bottom opens and allows all the fish to pass into the ice container. When the cage is removed from the water, fish are prevented from escaping from the tank by means of a nylon mesh (11) strategically installed on the support rods (1).

In figure 2, it is possible to observe the structural components of the cages responsible for the fluctuation of said equipment. Floatation is performed in a conventional manner, using empty and externally painted iron drums (12), joined by two wooden pieces (13), which have two crosspieces in the center (14), and where the top of the cage is hung. by a single point (15).

In order to cast the planks into a screen, a forty-five drill bit was developed, which worked simultaneously, drilling five planks over one another and making two hundred and twenty five holes at one time.

These drills are half an inch apart, being distributed into three pull groups and receiving a clockwise or counterclockwise gear. Two gear groups are on the same plane, the third group is on a higher plane than the others.

All groups have the same platform with the same guide system, but each receives control of a mother gear, more robust than the others, and which are powered by an electric motor.

The gear system works in lubricating oil. The drills were made of flat blades and steel shaft; when ready they were given spices so as not to shred easily. The drill system is fixed and the wood that receives them is drilled from the bottom upwards in an attempt to facilitate the purging of the chip and not to heat up the drills.

A pneumatic mobile workbench works above the drill system that secures the boards and allows the set to be lowered and raised as desired by the operator.

Once perforated, the boards go through the greenhouse process to lose water, for a time ranging from 48 to 72 hours, depending on the type of wood used (low density woods are preferred in the composition of the equipment).

After the time of dehydration, the pieces are equipped with all the necessary holes and possible ripples that may arise may be removed, and thereafter followed by heat treatment in a paraffin and beeswax solution.

When the pieces are immersed in this solution, the water begins to evaporate through the pores of the wood, causing a huge swirl of foam. When there is a reduction in the amount of foam formed, it is necessary for the operator to remove them immediately, otherwise the large pore enlargement can cause cracks between the hollow holes of the part, rendering them unusable.

The pieces removed from the solution are left for ten seconds on the paraffin tank so that excess solution drains away. After this procedure, the pieces are separately separated from each other and are finally ready to be inserted into the cage frame.

Claims (4)

1. CONSTRUCTIVE PROVISION INTRODUCED IN SWEET WATER FISHING EQUIPMENT IN GENERAL, to be used in the raising of fish in freshwater bodies in general (such as lakes, river backwaters and dams), characterized by a wood and iron structure with cylinder-shaped body and the inverted pyramid-shaped bottom, having at the top a rim (3) with four support rods and 3/8 construction (1), whose rods are in a plane superior to the rim where it is fixed the float hitch (2). The body boards are cast in the form of mesh (5), which are riveted in the upper (3) and lower (4) rims forming a cylinder, the bottom also being made of hollow boards (6) cut in wedge shape with fixed upper end. on the lower rim (4) thin sheets of stainless steel (9) and lower end joined by a flexible steel cable coated with plastic material (7), fitted to a wooden club (8), whose manual traction allows the opening of the bottom of the structure by end of cultivation, which allows the release of the fish in the cold container, making the slaughter by thermal shock, reducing stress and, consequently, the volume of toxins released into the bloodstream of the fish; To prevent fish from escaping from the tank at the time of withdrawal from the water cage, a nylon mesh (11) is strategically installed over the support rods (1). In order to lay down the boards, a forty-five drill was developed which simultaneously drilled five boards one over the other, making two hundred and twenty five holes at one time. The drills were arranged one half inch apart and were distributed into three traction groups. Each drill receives a clockwise or counterclockwise gear. Two gear groups are on the same plane, while the third group is on a higher plane than the others. All groups have the same platform and the same guide system, but each one is commanded by a mother gear, more robust than the others. The mother gears are driven by an electric motor. The woods that make up the main structure go through a preparation process where they are placed in a dehydration greenhouse for a time ranging from 48 to 72 hours, after being equipped with all the necessary holes and receiving a heat treatment, where they are immersed in a solution of paraffin and beeswax; The waterproofing of the wood occurs by the evaporation of the water present in the pores of the same, being then replaced by the solution of paraffin and beeswax, leaving the waterproof wood, more resistant to weathering and mechanical stress, making it more durable and light. 2. CONSTRUCTIVE PROVISION INTRODUCED IN EQUIPMENT FOR SWEET WATER FISHING IN GENERAL, to be used for raising fish in freshwater bodies in general (such as lakes, river backwaters and dams) according to claim 1, characterized in that it is constituted by of a cylinder-shaped timber and iron frame with an inverted pyramid shape, the lower end of which is joined by a plastic-coated flexible steel cabode (7) fitted to a wooden club (8), The manual opening allows the opening of the bottom of the structure, releasing the fish in a cold container, facilitating the slaughter by thermal shock, reducing stress and, consequently, the volume of toxins released into the bloodstream and dopeixe muscle. 3. CONSTRUCTIVE PROVISION INTRODUCED IN SWEET WATER FISHING EQUIPMENT IN GENERAL, to be used for raising fish in freshwater bodies in general (such as lakes, river backwaters and dams) according to claim 1, characterized in that it is a tool drill type, with forty-five drills arranged half an inch apart and distributed into three pull groups, each drill receiving a clockwise and counterclockwise gear, having two gear groups in the same plane and the third in one superior plane to the others, having the three groups, the same platform with the same guide system, each receiving the command of a mother gear, more robust than the others, being stretched by an electric motor. 4. CONSTRUCTIVE PROVISION INTRODUCED IN EQUIPMENT FOR SWEET WATER FISHING IN GENERAL, to be used for raising fish in freshwater bodies in general (such as lakes, backwaters and dams) according to claim 1, characterized by serum process preparation of the wood that forms the main structure of the cage, consisting of placing in a drying oven for a time ranging from 48 to 72 hours, after which they are fitted with all the necessary holes, receiving a heat treatment in a paraffin mixture and Beeswax, where they are immersed, when a process of evaporation of water by the pores of the wood begins. Aporosity of wood already dilated with heat allows water to escape giving space for paraffin and beeswax solution. As it cools, porosity contracts, expelling excess solution, which makes the wood impervious to the water, more resistant to weathering, mechanical stress, more durable and lighter.