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1106results about "Fishing" patented technology

System for trapping flying insects and a method for making the same

A flying insect trapping device configured to be used with a fuel supply containing combustible fuel. The device may include a supporting frame; an insect trap chamber carried on the supporting frame; and a combustion device which may also be carried on the supporting frame. The combustion device comprises an inlet port for connection with the fuel supply, an exhaust port, and a combustion chamber communicating the inlet port with the exhaust port. The inlet port enables the fuel from the fuel supply to flow into the combustion chamber for continuous combustion therein to create an exhaust gas within the combustion chamber. The combustion device further includes a catalyst element disposed within the combustion chamber. The catalyst element has a catalyst body with a plurality of essentially linear elongated conduits for enabling the exhaust gas created in the combustion chamber to flow therethrough towards the exhaust port. The catalyst body includes a catalytically active material that, during operation, converts carbon monoxide in the exhaust gas to carbon dioxide as the exhaust gas flows through the elongated conduits. An insect inlet is communicated with the insect trap chamber to enable flying insects to enter the trap chamber through the insect inlet. A vacuum device communicated to the insect inlet is constructed and arranged to draw insects attracted to the exhaust outlet through the insect inlet and into the insect trap chamber.
Owner:WOODSTREAM CORP +1

Self-reducing flow low-shape change off land deep water net cage

The invention discloses an automatic reducing low-deformation offshore deep-water cage, relating to a cage for marine aquiculture. The invention is capable to reduce the deformation of the cage and the flow rate of the sea water inside the cage. The invention comprises a buoyancy frame, a cage, a sinking ring, a sinking block and an anchoring rope. A supporting and lifting control ring bigger than the buoyancy frame and the diameter of the sinking ring is arranged at the one second depth of the cylindrical cage; a water inlet and a water outlet are arranged in the pipe wall of the supporting and lifting control ring; a girdle rubber inner bag which regulates the lifting and descending of the cage is arranged in the ring pipe; an air-valve is installed in the rubber inner bag and connected with the air supply by a pressure hose; between the outer ring and the supporting and lifting control ring of the double-ring buoyancy frame, the bottom outline of the cylindrical cage and the bottom sinking ring, a plurality of flexible ropes are located and connected according to the ring at geometric proportion, and a netting is arranged among the connecting ropes of the three rings; and finally, a flexibly connected automatic reducing low-deformation offshore deep-water cage with a cylindrical inside and a two-cone platform outside is formed, the stress point of the anchoring rope of the cage is arranged at the supporting and lifting control ring.
Owner:EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI

System, method and apparatus for attracting and stimulating aquatic animals

InactiveUS20060268664A1Improve efficiencyIncrease attractionTransmissionFishingHydrophoneDelayed periods
A programmable, customizable system, method, and apparatus for attracting and stimulating aquatic animals are disclosed. The present invention provides for the underwater playback of digitally prerecorded “signature” sounds of prey, and of prey being attacked and eaten, in order to attract fish and other species and stimulate them to strike and feed more aggressively. Playback is achieved by selecting any of a plurality of signature sound recordings stored on a memory device which is located and controlled above water. One sound, all sounds, or a selected sequence of sounds may be selected from the memory device to be played underwater. Underwater playback is achieved by use of a submersible transducer device which may function as both a speaker and a hydrophone. Underwater playback may be customized and controlled above water by providing a number of customized operational modes. For example, a user may select a sound recording to be repeatedly played in a loop, with each iteration separated by a delay period, the length of which is selected by the user. In addition, the user may select a plurality of different sound recordings, and specify the sequence and volume at which they are played underwater, as well as a delay period between each recording. The user may also select all sound recordings to be played at a selected volume level, and the user may further specify a delay period between each recording. Furthermore, the user may select sound recordings to be played underwater at varying volume levels according to selections made by the user.
Owner:BIOSONIX LLC

Fish catching device of fishing boat

The invention provides a fish catching device of a fishing boat and belongs to the field of fishing gears. The fish catching device of the fishing boat comprises a net cage, a net inlet, a frame, fish baits, net ropes, a floating ball, a lifting rope a, a pulley a, a supporting frame, a lifting rope b, a pulley b, a winch b, a column, a winch a, a hanging ring and a hook. The net cage is a cylinder, consists of a frame and a fishing net and is provided with the net inlet, wherein the net inlet is formed in the net cage and is tapered, and a fish outlet is formed in the bottom of the net cage. One hook is arranged at one end of the lifting rope a, the other end of the lifting rope a is connected to the winch a, and the middle of the lifting rope a penetrates the pulley a. The pulley a is installed on the supporting frame, the supporting frame is installed on the fishing boat through a hinge, and the winch a and the winch b are installed on the fishing boat. One end of the lifting rope b is fixed on the supporting frame, the other end of the lifting rope b is fixed on the winch b, the middle of the lifting rope b penetrates the pulley b, the pulley b is installed on the column, and the column is fixed on the fishing boat. One end of each of the three net ropes is fixed on the net cage frame, the other end of each of the three net ropes is fixed on the floating ball, the hanging ring is arranged on the floating ball, and the hook on the lifting rope a hooks the hanging ring.
Owner:ZHEJIANG OCEAN UNIV

Fishing device for cultured fishes

The invention relates to a finishing device for cultured fishes. The finishing device is arranged in front of a feeding platform and comprises at least three upright posts, a net cage and drag ropes, wherein two upright posts are vertically inserted into two sides of the feeding platform; other upright posts are vertically inserted into a pond; the upper ends of the upright posts are exposed out of the water surface by a certain length; rope penetrating pieces for the drag ropes to pass through are arranged at the upper ends of the upright posts; the net cage is arranged in an area defined by at least three upright posts; when the net cage is not subjected to tensile force of the drag rope, the net cage is sunken into the water bottom for a certain depth; the drag rope sequentially penetrates through each side of a net cage opening and the rope penetrating pieces at the upper end of the upright posts; two ends of the drag rope are used as operating ends at which the net cage is pulled up; when the drag rope is tightened, the net cage is raised; and when the drag rope is loosen, the net cage is sunken. The invention has the advantages of simple and ingenious structure, simpleness, convenience and feasibility for operation, high finishing amount, low production cost, high fishing rate for fishes, scientific fishing mode and low possibility of injuring fish bodies in the fishing process; the labor capacity for fishing can be greatly reduced; and large fishes can be fished and small fishes can be left.
Owner:FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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