RussianPatents.com
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Method of fishing and catching marine invertebrates. RU patent 2406300. |
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FIELD: agriculture. SUBSTANCE: invention may be used in the fishery of aquatic organisms positively reacting to light. Method of catching fish and marine invertebrates is to place on the perimetre of the boat of light sources parallel to the water surface for at least two levels with the possibility of rotation about the vertical and/or one of the horizontal axis and/or towards their longitudinal axis, at that the power of light sources placed on the lower level is lower than the power of light sources located on the upper level. Concentration of catch is carried out by displacement of commercial peak of the spectral characteristic of light sources located on the lower level, towards the red light and/or their alternate turning-off towards the light sources located above the gear. Preferably, the light sources of the upper level with a capacity of up to 5 kW are placed above the deck at the height of the upper tier of ship masts. At the lower level the lamps are used with capacity from 0.5 to 1.5 kW. Upon completion of the concentration with the well-known techniques the object of fishing is captured, the gear is raised, and the catch is notched. EFFECT: provision of opportunities for regulation of the light field in a wide range at all stages of fishing, from attraction the object of fishing to its seizure by fishing gear, which contributes to the efficiency of fishing. 4 cl, 11 dwg
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Method of sea hydrobiont catching positively reacting to light / 2328116 Method includes search of hydrobiont congestions, vessel statement in drift, hydrobiont concentrating under the vessel hull, catching hydrobiont by storeys. Fishing of congestions is carried out under the hull of one or several vessels consistently on different horizons of congestion by several stripping tools of catching in steps lowered on all thickness of congestion of sea hydrobiont. |
Method of electrification of trawls and device for realization of this method / 2304385 Proposed method consists in securing the electric power source in towing line in vicinity of trawl wing for supplying the electric current to system of electrodes located on trawl net envelope. Two independent power sources are secured at trawl wings on standard points of location of depressors. Wires supplying pulse current are connected to electrical connectors on control units of power sources; electrical fields formed by them are used for control of fish behavior in the course of fishing. Device proposed for realization of this method includes electric current generator driven by impeller actuated by energy of water incoming flow. It is placed in metal watertight housing and is provided with three-phase induction AC generator, bipolar current pulse oscillator, voltage, frequency and pulse duration control unit. Control unit is provided with single-contact connectors for connecting the wires running from electrodes on net section of trawl. |
Catching device for electric light fishing / 2278510 Proposed device has funnel with bell-like end with suction zone created by water flow and narrow end connected with fish intake hose. Device is furnished with load unit and lamps to create light field attracting fish to inlet hole of funnel. Funnel is made profiled in meridional section with inner streamlined surface, with inlet diameter at bell-like end providing position of suction zone border close to inlet hole. Lamps creating light field are displaced in direction of flow behind suction zone and they partly project into funnel space. Outer part of lamps is covered with cases non-transparent for light. |
Method of energizing electrodes for directional movement of fish / 2273991 Method comprises energizing one-row sectional electrode system separated with pulses. The negative voltage pulse is supplied alternately to one of the sections of the electrodes, and this section is converted into the cathode. The positive voltage pulse is fed to the other sections of the electrodes, which are not adjacent to the cathode, and they are converted into the anodes. According to the first version, the positive voltage pulse is fed to the all other sections of the electrodes, and they are converted into the anodes, excluding the sections adjacent to the cathode section of the electrodes. According to the second version, the positive voltage pulse is alternately fed to the even sections, and the even section is then converted into the cathode, or to the uneven sections of the electrodes, and the next even section is then converted into the cathode. According to the first version the number of the sections should be no less than 10, and according to the second version the number of sections should be no less than 18-20. |
Method of energizing electrodes for directional movement of fish / 2273991 Method comprises energizing one-row sectional electrode system separated with pulses. The negative voltage pulse is supplied alternately to one of the sections of the electrodes, and this section is converted into the cathode. The positive voltage pulse is fed to the other sections of the electrodes, which are not adjacent to the cathode, and they are converted into the anodes. According to the first version, the positive voltage pulse is fed to the all other sections of the electrodes, and they are converted into the anodes, excluding the sections adjacent to the cathode section of the electrodes. According to the second version, the positive voltage pulse is alternately fed to the even sections, and the even section is then converted into the cathode, or to the uneven sections of the electrodes, and the next even section is then converted into the cathode. According to the first version the number of the sections should be no less than 10, and according to the second version the number of sections should be no less than 18-20. |
Catching device for electric light fishing / 2278510 Proposed device has funnel with bell-like end with suction zone created by water flow and narrow end connected with fish intake hose. Device is furnished with load unit and lamps to create light field attracting fish to inlet hole of funnel. Funnel is made profiled in meridional section with inner streamlined surface, with inlet diameter at bell-like end providing position of suction zone border close to inlet hole. Lamps creating light field are displaced in direction of flow behind suction zone and they partly project into funnel space. Outer part of lamps is covered with cases non-transparent for light. |
Method of electrification of trawls and device for realization of this method / 2304385 Proposed method consists in securing the electric power source in towing line in vicinity of trawl wing for supplying the electric current to system of electrodes located on trawl net envelope. Two independent power sources are secured at trawl wings on standard points of location of depressors. Wires supplying pulse current are connected to electrical connectors on control units of power sources; electrical fields formed by them are used for control of fish behavior in the course of fishing. Device proposed for realization of this method includes electric current generator driven by impeller actuated by energy of water incoming flow. It is placed in metal watertight housing and is provided with three-phase induction AC generator, bipolar current pulse oscillator, voltage, frequency and pulse duration control unit. Control unit is provided with single-contact connectors for connecting the wires running from electrodes on net section of trawl. |
Method of sea hydrobiont catching positively reacting to light / 2328116 Method includes search of hydrobiont congestions, vessel statement in drift, hydrobiont concentrating under the vessel hull, catching hydrobiont by storeys. Fishing of congestions is carried out under the hull of one or several vessels consistently on different horizons of congestion by several stripping tools of catching in steps lowered on all thickness of congestion of sea hydrobiont. |
Method of fishing and catching marine invertebrates / 2406300 Invention may be used in the fishery of aquatic organisms positively reacting to light. Method of catching fish and marine invertebrates is to place on the perimetre of the boat of light sources parallel to the water surface for at least two levels with the possibility of rotation about the vertical and/or one of the horizontal axis and/or towards their longitudinal axis, at that the power of light sources placed on the lower level is lower than the power of light sources located on the upper level. Concentration of catch is carried out by displacement of commercial peak of the spectral characteristic of light sources located on the lower level, towards the red light and/or their alternate turning-off towards the light sources located above the gear. Preferably, the light sources of the upper level with a capacity of up to 5 kW are placed above the deck at the height of the upper tier of ship masts. At the lower level the lamps are used with capacity from 0.5 to 1.5 kW. Upon completion of the concentration with the well-known techniques the object of fishing is captured, the gear is raised, and the catch is notched. |
Electric fish barrier of directed action / 2473735 Fish barrier includes an electronic control unit and a double-row system of electrodes divided into sections. Each row of electrodes combined into half-sections is arranged at the angle to an arriving flow. A section of electrodes comprises two half-sections, one half-section from each row of electrodes. In the first version, a cathode is in turns one of the electrode sections, anodes are all remaining sections of electrodes. In the second version, a cathode is in turns one of the electrode sections, anodes are all remaining sections of electrodes, not adjacent to the cathode one. The produced homogeneous cathode electric field creates a wide deterring zone, which aligns fish away from electrode sections and takes it away from the protected water intake. |
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