Abstract: A full-hydraulic chain reversing and remote control water-power harvesting equipment for lotus roots includes a main framework, a traveling module, an elevating module, and a working module. The main framework is of a two-cross-beam structure; the working module is of a skid-mounted structure; the working module is in transmission connection with the traveling module through the elevating module and is fixedly mounted on a top surface of the main framework; the traveling module includes caterpillar bands and a two-hydraulic-motor group; the two-hydraulic-motor group is in transmission connection with the caterpillar bands; the caterpillar bands and the two-hydraulic-motor group are fixedly mounted on a bottom cross beam of the main framework; and the working module includes a power driving module, a jet working module, a water suction pipeline module and a hydraulic power module.

Abstract: Buoyant matter, and particularly biomass such as seaweed, is sequestered deep in a body of water, fey causing the matter to lose it buoyancy and sink and remain sunk for an extended period. In some examples, the matter is pumped to below a depth at which is loses its natural buoyancy as a result of the ambient water pressure resulting in it naturally sinking to the bottom.

Abstract: A weed control system for a body of water can include a rotatable vertically oriented shaft mounted proximate the body of water; an elongate horizontally oriented support member mounted to the vertically oriented shaft and suspended over the water; a rake suspended from the support member by a flexible line; and an oscillating motor for rotating the vertically oriented shaft and the elongate support member such that the rake moves in a repeating pattern through the body of water.

Abstract: A radius scraper includes a semicircular-shaped scraper having a curved front face, the curved front face having vertical grooves formed in a bottom edge thereof. Wires are respectively threaded into each of the vertical grooves, wherein the wires are braided steel wire.

Abstract: The invention relates to a boat (1) for servicing shallow canals, lakes, and rivers configured for extracting, cutting, grinding, and casting plant waste, solid waste, or agricultural plantation harvest and sending what is harvested to shore, and comprising an extractor belt (3) configured for extracting the plant waste which is deposited on a horizontal conveyor belt (9) to a grinding mill (4); and further comprising at least one drive turbine (5) and a directional stack (6).

Abstract: A cutting device for coupling to a water vessel propelling device. The cutting device comprises a base extending between a proximal end and a distal end and is coupled to a shaft of the water vessel propelling device. An upper arm is coupled to the base. A lower arm is coupled to the base. A track extends along the base. A blade slidably engages within the track for displacing between the upper arm and the lower arm. An actuator displaces the blade relative to the track. A cutting edge is on the blade for severing a foreign object that is positioned between the upper arm and the lower arm of the base.

Abstract: An aquatic vegetation cutter adaptable to a bow of a vessel having rotatable, cultivator-type cutter disks on converging angles along each side of the bow, and extending partially below the water line. Smaller ancillary cutter disks are mounted to the leading face of the larger cultivator-type cutter disks. The larger cutter disks and smaller ancillary cutter disks are driven using at least one drive motor, a series of drive sprockets and a connecting drive chain.

Abstract: A method for harvesting algae according to embodiments of the present invention includes filling a reservoir at least partially with a liquid, submerging a bag at least partially in the liquid, the bag containing media, the media comprising algae, the bag comprising a first end, a second end, a harvesting port located closer to the first end than to the second end, and a gas port, delivering gas into the bag through the gas port, and raising the second end of the bag by accumulating the gas at the second end to flow the media toward the harvesting port.

Abstract: A method and apparatus for dredging sediment from aquatic environments and cutting aquatic vegetation therein includes using a cutterhead mounted to a dredge. The cutterhead may be mounted to a shroud, the cutterhead including a rotating drum having an array of teeth assemblies which auger cut vegetation toward a port in the shroud for discharge via a pump. The shroud also includes stationary cutterbars having cutterbar teeth assemblies. The teeth assemblies preferably include back-to-back tooth pairs wherein individual teeth have a flat backside and a raised or convex front side which may be provided with serrated cutting margins. Using back-to-back tooth pairs enables cutting of more types and sizes of aquatic vegetation, reducing downtime due to clogging, bending or breakage versus conventional single teeth cutterheads. The shroud may include an upwardly and/or forwardly extending shield along its top front edge to deflect water and/or vegetation back toward the drum.

Abstract: Watercraft automation and aquatic data utilization for aquatic efforts are utilized for fishing and network communication. In one aspect, an anchor point is obtained and a water craft position maintenance routine is actuated to control the watercraft to maintain association with the anchor point. In another aspect, prior aquatic effort data is obtained in association with an anchor point. In yet another, aspect, current aquatic effort data is generated in association with an anchor point. In still another aspect, current aquatic effort data and prior aquatic effort data are utilized for prediction generation. In yet another aspect, current aquatic effort data and prior aquatic effort data are utilized to obtain another anchor point for a watercraft.

Abstract: An aquatic harvester for use with an aquatic craft, the aquatic craft including sides, a bow and a stern, the aquatic harvester including a frame which includes one or more arms, the or each arm having a forward end portion and the or each arm being pivotally connected to the aquatic craft at a position spaced from the forward end, said forward end of the or each arm being adapted for connection with an implement, the apparatus further including means for controlling the pivotal position of the or each arm relative to the aquatic craft.

Abstract: An aquatic vegetation cutter adaptable to a bow of a vessel having rotatable, cultivator-type cutter disks on converging angles along each side of the bow, and extending partially below the water line. Smaller ancillary cutter disks are mounted to the leading face of the larger cultivator-type cutter disks. The larger cutter disks and smaller ancillary cutter disks are driven using at least one drive motor, a series of drive sprockets and a connecting drive chain.

Abstract: An aquatic weed harvester includes an open frame and a tubular mesh harvesting material that is secured to the open frame via a series of hooks disposed about the harvesting frame. The frame can be secured to a bow of a floatable structure or vessel via a variety of configurations, such as a pair of mounting channels or a rotating frame assembly. The rotating frame assembly allows the user to rotate the harvester between an in use orientation and a stored orientation. When placed in a stored orientation, the harvester opening is rotated upwards aiding the user in sealing the harvesting bag. The vessel preferably is designed having a split bow, where the weed harvester is positioned between the two bow extensions.

Abstract: A cutterhead for cutting aquatic vegetation, includes a cutterhead shroud, stationary teeth secured to the shroud, and a drum rotatably mounted within the shroud and bearing a flight of vanes cooperating with the teeth to cut vegetation. In accordance with the non-binding aspect of the cutterhead, each vane has an edge that rises gradually from a trailing end adjacent (during drum rotation) to a stationary tooth, to provide a clearance area adjacent the vane into which a respective tooth may be deflected during cutting without impinging upon an associated vane, and thus without causing binding of the cutterhead in the event of such deflection. Each vane may have a curvilinear edge extending from its cutting end to a surface of the drum at its trailing end. The edge defines a two-dimensional profile having a trailing end tangent forming an angle of not more than 70 degrees with the drum.

Abstract: An apparatus and method for removing rooted aquatic weeds. An elongated pole includes a remotely operated arm at its distal end. The arm is movable from a disengaged position to an engaged position. The user pushes the distal end of the pole underwater, until it enters the tendrils of a target weed. The remote control is activated, deploying the arm into an engaged position, generally perpendicular to the pole. Simultaneously, the user begins to rotate the pole until resistance to further rotation is detected. This indicates that the tendrils of the weed have been engaged by the arm. Pushing and pulling forces are applied to the pole, until the user detects that the roots of the weed have been extracted from the soil. Continued rotation of the pole while pulling upwardly brings the weed to the water surface, where it may be pulled completely out of the water.

Abstract: A device for cutting aquatic vegetation is provided. In one embodiment, the device has a plurality of cutting blades that rotate freely on an elongate shaft and cut aquatic vegetation as the device travels through a body of water. In one approach, the device includes an impact accommodating mechanism that permits the device to absorb an impact between the device and submerged objects in the body of water. A method is also provided that includes providing an aquatic vehicle having disposed thereon a cutting device, the cutting device having a shaft with at least one cutting blade journaled for free rotation on the shaft. The vehicle is moved through a body of water to cause rotation of the cutting blade and cutting of aquatic vegetation in the body of water.

Abstract: An aquatic plant removal rake including a head, having one or more co-planar set of tines integrally formed thereupon, a plurality of implement lugs integrally formed thereupon, and a handle aperture adapted to receive a handle therethrough; a handle having a handle cord end that includes an eyelet adapted to receive a cord therethrough, and a handle head end that includes a handle locating protrusion and that is adapted to be received by the head; a retrieving handle including a retrieving handle cord aperture integrally formed thereupon and adapted to receive a cord, and a grip adapted to be gripped by a user or users; and a cord adapted to place each of the handle and the retrieving handle in mechanical communication with one another, whereby forces transmitted to the retrieving handle are transferred to each of the handle and the head. A method of use is also provided.

Abstract: A cutterhead for cutting aquatic vegetation, includes a cutterhead shroud, stationary teeth secured to the shroud, and a drum rotatably mounted within the shroud and bearing a flight of vanes cooperating with the teeth to cut vegetation. In accordance with the non-binding aspect of the cutterhead, each vane has an edge that rises gradually from a trailing end adjacent (during drum rotation) to a stationary tooth, to provide a clearance area adjacent the vane into which a respective tooth may be deflected during cutting without impinging upon an associated vane, and thus without causing binding of the cutterhead in the event of such deflection. Each vane may have a curvilinear edge extending from its cutting end to a surface of the drum at its trailing end. The edge defines a two-dimensional profile having a trailing end tangent forming an angle of not more than 70 degrees with the drum.

Abstract: In one aspect of watercraft automation and aquatic data utilization for aquatic efforts, an anchor point is obtained and a watercraft position maintenance routine is actuated to control the watercraft to maintain association with the anchor point. In another aspect, prior aquatic effort data is obtained in association with an anchor point. In yet another aspect, current aquatic effort data is generated in association with an anchor point. In still another aspect, current aquatic effort data and prior aquatic effort data are utilized for prediction generation. In yet another aspect, current aquatic effort data and prior aquatic effort data are utilized to obtain another anchor point for a watercraft.

Abstract: A harvester and method for harvesting aquatic algae or floating vegetation in shallow areas of water bodies, such as lakes. The harvester is manually operated. The harvester includes a pair of blades which are manually moved by a rope connected to an extension spring, a compressed gas cylinder or the harvester wheels through a metal rod driven system. The harvester provides improved hydraulic flow through a hydraulic friction reducing plastic or metal sheet, a movable plastic or metal bar to adjust the volume of water allowed into the apparatus and vertical hydraulic flow guides to improve flow of water through the apparatus. The aquatic algae or floating vegetation is collected on the harvester, removed from the harvester, dewatered and used for compost in garden and agricultural activities.

Abstract: The weed cutting tool (10) comprises a handle (12) and two adjustable cutting arms (14) extending outwardly from the handle (12) and lying in a single plane, the arms (14) being pivotably adjustable toward and away from the handle (12), in increments, to accommodate cutting various densities of weeds growing along shorelines of bodies of water.

Abstract: A method and apparatus for harvesting algal growth on an algal growth medium that is arranged within a floway containing water. A cable coupled to the algal growth medium is pulled by a pulling unit to draw the algal growth medium along the floway and past a vacuum positioned adjacent the algal growth medium. Suction from the vacuum is used to remove or harvest the algal growth on the algal growth medium.

Abstract: A waterborne vegetation harvesting apparatus includes a watercraft, a conveyor assembly having a conveyor belt carried by the watercraft and at least one vegetation shredder disposed in communication with the conveyor assembly.

Abstract: A method for harvesting algae according to embodiments of the present invention includes filling a reservoir at least partially with a liquid, submerging a bag at least partially in the liquid, the bag containing media, the media comprising algae, the bag comprising a first end, a second end, a harvesting port located closer to the first end than to the second end, and a gas port, delivering gas into the bag through the gas port, and raising the second end of the bag by accumulating the gas at the second end to flow the media toward the harvesting port.

Abstract: A manually operable cutting tool for removing vegetation from a body of water such as along the shoreline of a pond or lake includes a handle and a pair of angularly adjustable cutting blades. The blades are selectively, pivotally adjustable between fully open and fully closed angular positions for ease and safety of handling. An optional floatation bar may be provided for attaching to the blades which allows the blades to be pulled across the surface of the water for collecting floating weeds.

Abstract: A rake implement, which can be attached to a tractor to remove vegetation from a body of water, is comprised of a triangular frame, three arms, a hitch receiver, a rake arm and a plurality of tines. The arms extend from the vertices of the triangular frame and meet at the hitch receiver. The hitch receiver slidingly holds the rake arm. The rake arm is locked to the hitch receiver to set the length of the rake implement. The tines are transversely attached to the rake arm forming a rake like structure. The triangular frame is attached to the three-way hitch of a tractor. The rake implement and tractor can be used to remove vegetation from the body of water. The length of the rake implement is sufficient to allow the tines to engage all of the undesirable vegetation without the tractor entering the body of water.

Abstract: A moss and debris removal device having an elongated member with a top edge and a bottom edge wherein the top edge and bottom edge have teeth. A line is mounted to the elongated member. The elongated member has a plurality of holes. In one embodiment, the teeth of the top edge and bottom edge of the elongated member have a V-shaped cross section.

Abstract: The assembly comprises a frame-truss subassembly, to which are attached an internal subassembly for directing a flow of encountered water during dragging and a subassembly for collecting and discharging shellfish. An external subassembly is used for encasing the frame-truss subassembly together with the internal subassembly and the subassembly for collecting and discharging shellfish. The frame-truss subassembly includes a pair of lateral trusses, spaced at a distance commensurable with a width of the assembly. The internal subassembly includes an anterior panel with a forwards oriented concavity and a posterior panel with a backwards oriented concavity. The subassembly for collecting and discharging, disposed behind the internal subassembly includes a louver platform, a grid receptacle supported by the platform and a mechanism for topple over the grid receptacle. At least two sets of a multiplicity of hinged flaps are used.

Abstract: A buoyant device for use by one or two persons to skim from the surface of bodies of water the vegetative matter that accumulates thereon so as to facilitate its disposal. The device consists of a cylindrical screen formed to the configuration of the letter C with the top lip being held at the water's surface by a buoyant bar and the lower lip being positioned below the upper lip by a weighted bar; a harness attached to the buoyant bar is used to pull the device across the water's surface.

Abstract: A buoyant device for use by one or two persons to skim from the surface of bodies of water the vegetative matter that accumulates thereon so as to facilitate its disposal. The device consists of a cylindrical screen formed to the configuration of the letter C with the top lip being held at the water's surface by a buoyant bar and the lower lip being positioned below the upper lip by a weighted bar; a harness attached to the buoyant bar is used to pull the device across the water's surface.

Abstract: An aqua tiller device. The device includes a hollow, liner body member having interior and exterior surfaces and open ends. A plurality of tine members, each having an L-shaped end, protrude radially from the body member with the L-shaped end opposite thereto. A linear, axle member is positioned within the hollow, linear body member and extends beyond the ends thereof. An end cap member is attachable at each end of the body member. The end cap members each have an aperture therein allowing the axle member to protrude there through and rotate therein. An eye bolt assembly is rotatably attached at each end of the axle member. The eye bolt assemblies are attached to of a length of rope for moving the weed tiller device over a submerged surface. The hollow, linear body member and end cap members are adapted for receiving fill material for adding weight to the weed tiller device.

Abstract: A harvester and method for harvesting aquatic algae or floating vegetation in shallow areas of water bodies, such as lakes is described. The harvester is manually operated. The harvester includes a pair of blades which are manually moved by a rope connected to an extension spring, a compressed gas cylinder or the harvester wheels through a metal rod driven system. The harvester provides improved hydraulic flow through a hydraulic friction reducing plastic/metal sheet, a movable plastic/metal bar to adjust the volume of water allowed into the apparatus and vertical hydraulic flow guides to improve flow of water through the apparatus. The aquatic algae or floating vegetation is collected on the harvester, removed from the harvester, dewatered and used for compost in garden and agricultural activities.

Abstract: A portable dredging apparatus comprising a cutter housing in communication with a hydraulic power supply and a discharge pump through lengths of tubing whereby said cutter housing is submersible. The cutter housing is comprised of a platform having walls depending therefrom with the cutter blade positioned therewithin and height adjustable wheels exteriorly located on opposing sides. Also extending between the walls proximate to the cutter blade is an angularly positioned wiper element designed to dislodge debris caught between the teeth of the cutter blade. Angularly depending screen situated between the wiper blade and discharge port located in the rear wall prevent objects larger than the screen mesh from discharge port passage. Releasably fastened to the exterior side of the discharge port is an appropriate length of flexible conduit terminating at a remote discharge pump with additional conduit extending from the discharge pump to a desired debris discharge location.

Abstract: An apparatus and method for harvesting cranberries, the method including moving frame-mounted transverse dislodging rods over cranberry plants with each rod moving at the speed of the frame, thereby to dislodge cranberries from the cranberry plants. The apparatus includes a plurality of dislodging rods secured below the frame, the dislodging rods positioned substantially parallel to the field surface and generally perpendicular to the direction of movement whereby each dislodging rod is moved through the cranberry plants at the speed of the frame to dislodge the cranberries from the plants. Certain preferred embodiments use follower assemblies to configure an array of dislodging rods in an advantageous arrangement.

Abstract: A weed control system for a body of water which includes a weed contacting member suspendable within the body of water proximate a bed of weeds and a drive member for automatically moving the weed contacting member repeatedly over the bed of weeds such that the weed contacting member repeatedly brushes against any weeds in the bed of weeds.

Abstract: A weed cutting apparatus for use in water is disclosed. The weed cutting apparatus would be designed to cut weeds within a body of water without having the weeds tangle on the present invention.

Abstract: A harvester and method for harvesting aquatic algae or floating vegetation in shallow areas of water bodies, such as lakes is described. The harvester is manually operated. The harvester moves on hollow wheels that are capable of adjusting the buoyancy of the harvester by adding or subtracting water/air into the hollow wheels. The aquatic algae or floating vegetation is collected on the harvester, removed from the harvester, dewatered and used for compost in garden and agricultural activities.

Abstract: An apparatus and method for cutting plant growth from waterways to promote fluid passage through such waterway. Water under high pressure is forced through a nozzle orifice to cut, chop and/or pulverize the aquatic plant matter. The nozzle is on a spray-head assembly of the apparatus, which is positioned above or in the waterway by the boom of a vehicle such as, for example, a crane or backhoe. As the transport machinery and apparatus are advanced in the waterway, a path is cut through aquatic plant matter by the high pressure water from the nozzle, and, as a result, the waterway may be effectively cleared. In the preferred apparatus and method, wherein the nozzle directs the water vertically into the waterway, a steel plate may be submerged beneath the level of the nozzle and above the soil surface to protect the soil from disruption and erosion.

Abstract: An airboat having aquatic vegetation shredder includes an airboat having a buoyant hull and an aquatic vegetation shredding assembly supported on the hull. The airboat is driven by a propulsion assembly including a propeller that revolves in the air. These features cooperatively provide a low draft vessel that is capable of relatively higher forward speeds than other aquatic vegetation shredders and particularly effective in shallow water environments. Various alternative configurations of the shredding assembly are disclosed including upright and fore-and-aft shaft orientations for the cutting assembly and a drum and knife cutting assembly.

Abstract: A rake system for removing underwater vegetation comprising a plate assembly, a handle assembly, and a line. The plate assembly comprises first and second engaging members each defining an engaging edge. The handle assembly is attached to the plate assembly. The line is attached to the handle assembly. During use, the user grips the handle assembly to toss the plate assembly to a first underwater location. The user then pulls the line to displace the plate assembly from the first underwater location along a harvest path. The engaging edges of the engaging members are adapted to engage the underwater vegetation to fix the underwater vegetation relative to the plate assembly such that continued pulling on the line removes the underwater vegetation in a harvest region defined by the harvest path.

Abstract: A watercraft for reduces aquatic plant infestation by mulching or otherwise chopping plants growing on the surface of the water as the craft moves forward along a waterway. Specifically exemplified is an airboat having a hull with an intake port at the bow end of the craft whereby aquatic plant laden water enters the craft; an exhaust port whereby water and mulched aquatic plants are discharged; at least two vertically-oriented spindles having blades attached thereon, and at least one positionable and interchangeable blade assembly disposed in front of the intake port which may be raised, lowered and tilted as desired.

Abstract: A harvester and method for cutting and harvesting bottom growing aquatic vegetation in shallow areas of water bodies, such as lakes. The harvester is manually operated. The harvester moves on wheels and is capable of being adjusted to cut the aquatic vegetation at a desired height that does not disturb the water bottom ecology. The vegetation is collected on the harvester, removed from the harvester, dewatered and used for compost in garden and agricultural activities.

Abstract: An aquatic shredder includes a watercraft and a pair of large, high speed propellers mounted at both the bow and stern ends of the watercraft. The propellers are configured to not only propel the watercraft through the water but also to chop vegetation at or near the water surface. Moreover, the bow propellers are similar in construction to the stern propellers so that they similarly effect comminution of the vegetation and propulsion of the watercraft. In particular, each pair of propellers extends completely across the width of the watercraft and projects laterally outward beyond the port and starboard sides of the watercraft. Each pair of propellers is preferably supported by a swingable frame that permits the user to raise and lower the propellers as desired. To enhance the cutting action of the propellers, the blades of the propellers may be provided with fore and aft extending knives.

Abstract: A rake system for removing underwater vegetation comprising a plate assembly, a handle assembly, and a line. The plate assembly comprises first and second engaging members each defining an engaging edge. The handle assembly is attached to the plate assembly. The line is attached to the handle assembly. During use, the user grips the handle assembly to toss the plate assembly to a first underwater location. The user then pulls the line to displace the plate assembly from the first underwater location along a harvest path. The engaging edges of the engaging members are adapted to engage the underwater vegetation to fix the underwater vegetation relative to the plate assembly such that continued pulling on the line removes the underwater vegetation in a harvest region defined by the harvest path.

Abstract: An apparatus and method for cutting plant growth from waterways to promote fluid passage through such waterway. Water under high pressure is forced through a nozzle orifice to cut, chop and/or pulverize the aquatic plant matter. The nozzle is on a spray-head assembly of the apparatus, which is positioned above or in the waterway by the boom of a vehicle such as, for example, a crane or backhoe. As the transport machinery and apparatus are advanced in the waterway, a path is cut through aquatic plant matter by the high pressure water from the nozzle, and, as a result, the waterway may be effectively cleared. In the preferred apparatus and method, wherein the nozzle directs the water vertically into the waterway, a steel plate may be submerged beneath the level of the nozzle and above the soil surface to protect the soil from disruption and erosion.

Abstract: A weed control system for a body of water which includes a weed contacting member suspendable within the body of water proximate a bed of weeds and a drive member for automatically moving the weed contacting member repeatedly over the bed of weeds such that the weed contacting member repeatedly brushes against any weeds in the bed of weeds.

Abstract: An airboat having aquatic vegetation shredder includes an airboat having a buoyant hull and an aquatic vegetation shredding assembly supported on the hull. The airboat is driven by a propulsion assembly including a propeller that revolves in the air. These features cooperatively provide a low draft vessel that is capable of relatively higher forward speeds than other aquatic vegetation shredders and particularly effective in shallow water environments. Various alternative configurations of the shredding assembly are disclosed including upright and fore-and-aft shaft orientations for the cutting assembly and a drum and knife cutting assembly.

Abstract: A baler is provided with a baling chamber for producing parallelepiped bales. The baling chamber has an upper part that can be repositioned in height by servo motors. The baling plunger is constructed of upper and lower parts that can also be adjusted vertically a corresponding amount.

Abstract: An aquatic shredder includes a watercraft and a pair of large, high speed propellers mounted at both the bow and stern ends of the watercraft. The propellers are configured to not only propel the watercraft through the water but also to chop vegetation at or near the water surface. Moreover, the bow propellers are similar in construction to the stern propellers so that they similarly effect comminution of the vegetation and propulsion of the watercraft. In particular, each pair of propellers extends completely across the width of the watercraft and projects laterally outward beyond the port and starboard sides of the watercraft. Each pair of propellers is preferably supported by a swingable frame that permits the user to raise and lower the propellers as desired. To enhance the cutting action of the propellers, the blades of the propellers may be provided with fore and aft extending knives.

Abstract: An aquatic shredder includes a watercraft and a pair of large, high speed propellers mounted at both the bow and stern ends of the watercraft. The propellers are configured to not only propel the watercraft through the water but also to chop vegetation at or near the water surface. Moreover, the bow propellers are similar in construction to the stern propellers so that they similarly effect comminution of the vegetation and propulsion of the watercraft. In particular, each pair of propellers extends completely across the width of the watercraft and projects laterally outward beyond the port and starboard sides of the watercraft. Each pair of propellers is preferably supported by a swingable frame that permits the user to raise and lower the propellers as desired. To enhance the cutting action of the propellers, the blades of the propellers may be provided with fore and aft extending knives.