WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

E02F　DREDGING; SOIL-SHIFTING (winning peat E21C 49/00)

E02F 1/00 General working methods with dredgers or soil-shifting machines (methods for making embankments E02D 17/18; methods for mining E21C)

E02F 3/00 Dredgers; Soil-shifting machines (for special purposes E02F 5/00; other machines or apparatus for mining E21C; tunnelling E21D)

E02F 3/02 ・hand-operated; {handheld soil shifting equipment acting by sucking E02F 3/8891(spades or rakes for agriculture or gardening purposes A01B)}

E02F 3/04 ・mechanically-driven

E02F 3/045 ・・{with oscillating digging tools, e.g. oscillating spades}

E02F 3/06 ・・with digging screws {(earth drilling E21; for digging trenches or ditches E02F 5/04)}

E02F 3/08 ・・with digging elements on an endless chain, {e.g. bucket-type chains (for digging trenches or ditches E02F 5/06; cutting machines for mining or quarrying E21C 25/22)}

E02F 3/081 ・・・{mounted on floating substructures (floating substructures per se E02F 9/06)}

E02F 3/082 ・・・{including a belt-type conveyer for transporting the excavated material}

E02F 3/083 ・・・{including a screw-type conveyer for transporting the excavated material}

E02F 3/085 ・・・{with auxiliary or additional digging elements other than digging elements on an endless chain}

E02F 3/086 ・・・{vertically shiftable relative to the frame}

E02F 3/087 ・・・{with digging unit working in a plane inclined to the direction of travel}

E02F 3/088 ・・・{pivotable relative to the frame}

E02F 3/10 ・・・with tools that only loosen the material, {i.e. with cutter-type chains}

E02F 3/12 ・・・Component parts {e.g. bucket troughs}

E02F 3/14 ・・・・Buckets; Chains; Guides for buckets or chains; Drives for chains {not used, see subgroups}

E02F 3/141 ・・・・・{buckets}

E02F 3/142 ・・・・・{tools mounted on buckets or chains which loosen the soil, e.g. cutting wheels, or the like (teeth per se E02F 9/28)}

E02F 3/143 ・・・・・{chains; chain links; scraper chains (chains or chain guides E21C 25/28)}

E02F 3/144 ・・・・・{emptying or cleaning the buckets, e.g. in combination with spoil removing equipment}

E02F 3/145 ・・・・・{drives}

E02F 3/146 ・・・・・{guides for chains or buckets, e.g. for buckets movable relative to chains (chains or chain guides E21C 25/28)}

E02F 3/147 ・・・・・{arrangements for the co-operation between buckets or buckets and wheels}

E02F 3/148 ・・・・・{wheels, sprokets}

E02F 3/16 ・・・・Safety or control devices (safety devices in general F16P; controlling in general G05)

E02F 3/18 ・・with digging wheels turning round an axis, {e.g. bucket-type wheels (for digging trenches E02F 5/08; for laying cables underwater E02F 5/109; cutting machines E21C25; methods or apparatus for making tunnels or galleries E21D9)}

E02F 3/181 ・・・{including a conveyer}

E02F 3/183 ・・・{with digging unit shiftable relative to the frame}

E02F 3/185 ・・・{with digging unit mounted in a plane which is inclined to the direction of travel; with tools digging laterally with respect to the frame}

E02F 3/186 ・・・{with the axis being substantially parallel to the direction of travel}

E02F 3/188 ・・・{with the axis being horizontal and transverse to the direction of travel}

E02F 3/20 ・・・with tools that only loosen the material, {i.e. mill-type wheels}

E02F 3/205 ・・・・{with a pair of digging wheels, e.g. slotting machines (implements for making foundation slots with definition of the walls or foundations E02D 17/13; bulkheads or similar walls made solely of concrete in situ E02D 5/18; with a pair of buckets E02F 3/475)}

E02F 3/22 ・・・Component parts

E02F 3/24 ・・・・Digging wheels; Digging elements of wheels; Drives for wheels

E02F 3/241 ・・・・・{digging wheels}

E02F 3/243 ・・・・・{wheels rotatable in both directions}

E02F 3/245 ・・・・・{with digging elements mounted movable relative to the wheel}

E02F 3/246 ・・・・・{drives}

E02F 3/248 ・・・・・{Cleaning the wheels or emptying the digging elements mounted on the wheels, e.g. in combination with spoil removing equipment}

E02F 3/26 ・・・・Safety or control devices (safety devices in general F16P; controlling in general G05B)

E02F 3/28 ・・with digging tools mounted on a dipper- or bucket-arm, {i.e. there is either one arm or a pair of arms}, e.g. dippers, buckets

E02F 3/283 ・・・{with a single arm pivoted directly on the chassis (linkage mechanism for it E02F 3/3405)}

E02F 3/286 ・・・・{telescopic or slidable (fork-lift trucks with a telescopic boom B66F 9/0655)}

E02F 3/30 ・・・with a dipper-arm pivoted on a cantilever beam, {i.e. boom}

E02F 3/301 ・・・・{with more than two arms (boom included), e.g. two-part boom with additional dipper-arm}

E02F 3/302 ・・・・{with an additional link}

E02F 3/303 ・・・・{with the dipper-arm or boom rotatable about its longitudinal axis}

E02F 3/304 ・・・・{with the dipper-arm slidably mounted on the boom (E02F 3/305 takes precedence)}

E02F 3/305 ・・・・{with the dipper-arm slidably mounted on the boom and the boom slidably mounted on the frame}

E02F 3/306 ・・・・{with telescopic dipper-arm or boom}

E02F 3/307 ・・・・{the boom and the dipper-arm being connected so as to permit relative movement in more than one plane}

E02F 3/308 ・・・・{working outwardly}

E02F 3/32 ・・・・working downwardly and towards the machine, e.g. with backhoes

E02F 3/325 ・・・・・{Backhoes of the miniature type}

E02F 3/34 ・・・with bucket-arms {i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms (with a single arm E02F 3/283)} directly pivoted on the frames of tractors or self-propelled machines

E02F 3/3402 ・・・・{the arms being telescopic (fork-lift trucks with a telescopic boom B66F 9/0655)}

E02F 3/3405 ・・・・{and comprising an additional linkage mechanism}

E02F 3/3408 ・・・・・{of the parallelogram-type}

E02F 3/3411 ・・・・・{of the Z-type}

E02F 3/3414 ・・・・{the arms being pivoted at the rear of the vehicle chassis, e.g. skid steer loader}

E02F 3/3417 ・・・・{Buckets emptying by tilting (E02F 3/342, E02F 3/345 take precedence)}

E02F 3/342 ・・・・Buckets emptying overhead (E02F 3/348 to E02F 3/358 take precedence)

E02F 3/345 ・・・・Buckets emptying side-ways (E02F 3/348 to E02F 3/358 take precedence)

E02F 3/348 ・・・・Buckets emptying into a collecting or conveying device

E02F 3/3483 ・・・・・{Buckets discharging on a conveyer or elevator mounted on the machine}

E02F 3/3486 ・・・・・{Buckets discharging overhead into a container mounted on the machine}

E02F 3/352 ・・・・Buckets movable along a fixed guide

E02F 3/355 ・・・・Buckets connected to the rear end of a tractor {not used}

E02F 3/358 ・・・・Bucket-arms pivoted on a turntable being part of a tractor frame {or buckets arranged on a turntable supported by the arms}

E02F 3/36 ・・・Component parts

E02F 3/3604 ・・・・{Devices to connect tools to arms, booms or the like}

E02F 3/3609 ・・・・・{of the quick acting type, e.g. controlled from the operator seat (quick-acting couplers to connect booms or arms to tractors E02F 3/627; quick-acting couplers for machines mounted on tractor A01B 59/06; couplings of the quick-acting type per se F16L37)}

E02F 3/3613 ・・・・・・{with means for absorbing any play therebetween (E02F 3/364 takes precedence)}

E02F 3/3618 ・・・・・・{with two separating hooks}

E02F 3/3622 ・・・・・・{with a hook and a locking element acting on a pin}

E02F 3/3627 ・・・・・・{with a hook and a longitudinal locking element}

E02F 3/3631 ・・・・・・{with a hook and a transversal locking element}

E02F 3/3636 ・・・・・・{using two or four movable transversal pins}

E02F 3/364 ・・・・・・{using wedges}

E02F 3/3645 ・・・・・・{with auto-engagement means for automatic snap-on of the tool coupler part}

E02F 3/365 ・・・・・・{with redundant latching means, e.g. for safety purposes}

E02F 3/3654 ・・・・・・{with energy coupler, e.g. coupler for hydraulic or electric lines, to provide energy to drive(s) mounted on the tool}

E02F 3/3659 ・・・・・・{electrically-operated}

E02F 3/3663 ・・・・・・{hydraulically-operated}

E02F 3/3668 ・・・・・・{where engagement is effected by a mechanical lever or handle}

E02F 3/3672 ・・・・・・{where disengagement is effected by a mechanical lever or handle}

E02F 3/3677 ・・・・・{allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets}

E02F 3/3681 ・・・・・・{Rotators}

E02F 3/3686 ・・・・・{using adapters, i.e. additional element to mount between the coupler and the tool}

E02F 3/369 ・・・・{Devices to connect parts of a boom or an arm (devices to connect booms or arms to tractors E02F 3/627)}

E02F 3/3695 ・・・・{Arrangements for connecting dipper-arms to loaders or graders}

E02F 3/38 ・・・・Cantilever beams {i.e. booms; e.g. manufacturing processes, forms, geometry or materials used for booms (for booms with cable suspension arrangements E02F 9/14 takes precedence)}; Dipper-arms {e.g. manufacturing processes, forms, geometry or materials used for dipper-arms}; Bucket-arms {(E02F 3/34 takes precedence)}

E02F 3/382 ・・・・・{Connections to the frame; Supports for booms or arms (devices to connect booms or arms to tractors or similar machines E02F 3/627; pivot joint assemblies in particular E02F 9/006)}

E02F 3/384 ・・・・・・{the boom being pivotable relative to the frame about a vertical axis}

E02F 3/386 ・・・・・・{the boom being laterally shiftable relative to the frame}

E02F 3/388 ・・・・・{Mechanical locking means for booms or arms against rotation, e.g. during transport of the machine (transporting-cranes B66C 23/344)}

E02F 3/40 ・・・・Dippers; Buckets {Grab device, e.g. manufacturing processes for buckets, form, geometry, material of buckets (devices to connect tools to arms or booms E02F 3/3604; teeth therefor E02F 9/28)}

E02F 3/401 ・・・・・{Buckets or forks comprising, for example, shock absorbers, supports or load striking scrapers to prevent overload}

E02F 3/402 ・・・・・{with means for facilitating the loading thereof, e.g. conveyers}

E02F 3/404 ・・・・・・{comprising two parts movable relative to each other, e.g. for gripping}

E02F 3/405 ・・・・・・{using vibrating means (blades or levelling tools with vibrating teeth E02F 3/8155; vibrating rippers E02F 5/326)}

E02F 3/407 ・・・・・with ejecting {or other unloading} device

E02F 3/4075 ・・・・・・{Dump doors; Control thereof}

E02F 3/413 ・・・・・with grabbing device ({E02F 3/404 takes precedence; with grab buckets moved by cables or hoisting ropes E02F 3/47;} grab equipment for cranes B66C)

E02F 3/4131 ・・・・・・{mounted on a floating substructure (floating substructures per se E02F 9/06)}

E02F 3/4133 ・・・・・・{grabs carried out as loaders or mounted on a tractor}

E02F 3/4135 ・・・・・・{with grabs mounted directly on a boom}

E02F 3/4136 ・・・・・・{with grabs mounted on a slidable or telescopic boom or arm}

E02F 3/4138 ・・・・・・{the grab being emptied by flushing}

E02F 3/42 ・・・・Drives for dippers, buckets, dipper-arms or bucket-arms

E02F 3/422 ・・・・・{Drive systems for bucket-arms, front-end loaders, dumpers or the like}

E02F 3/425 ・・・・・{Drive systems for dipper-arms, backhoes or the like}

E02F 3/427 ・・・・・{with mechanical drives (by cables or hoisting ropes E02F 3/46 take precedence)}

E02F 3/43 ・・・・・Control of dipper or bucket position; Control of sequence of drive operations

E02F 3/431 ・・・・・・{for bucket-arms, front-end loaders, dumpers or the like}

E02F 3/432 ・・・・・・・{for keeping the bucket in a predetermined position or attitude}

E02F 3/433 ・・・・・・・・{horizontal, e.g. self-levelling}

E02F 3/434 ・・・・・・・{providing automatic sequences of movements, e.g. automatic dumping or loading, automatic return-to-dig}

E02F 3/435 ・・・・・・{for dipper-arms, backhoes or the like}

E02F 3/436 ・・・・・・・{for keeping the dipper in the horizontal position, e.g. self-levelling}

E02F 3/437 ・・・・・・・{providing automatic sequences of movements, e.g. linear excavation, keeping dipper angle constant}

E02F 3/438 ・・・・・・・{Memorising movements for repetition, e.g. play-back capability}

E02F 3/439 ・・・・・・・{Automatic repositioning of the implement, e.g. automatic dumping, auto-return (E02F 3/438 takes precedence)}

E02F 3/46 ・・with reciprocating digging or scraping elements moved by cables or hoisting ropes; {Drives or control devices therefor (E02F 3/205, E02F 3/905 take precedence)}

E02F 3/47 ・・・with grab buckets (grab equipment for cranes B66C)

E02F 3/475 ・・・・{for making foundation slots (slotting machines with a pair of digging wheels E02F 3/205)}

E02F 3/48 ・・・Drag-lines

E02F 3/50 ・・・with buckets or other digging elements moved along a rigid guideway

E02F 3/52 ・・・Cableway excavators (cable cranes B66C)

E02F 3/54 ・・・Cable scrapers {(E02F 3/48, E02F 3/52 take precedence)}

E02F 3/56 ・・・・with hand-controlled scraper or other digging elements

E02F 3/58 ・・・Component parts {(E02F 9/14, E02F 3/905 take precedence)}

E02F 3/60 ・・・・Buckets, scrapers, or other digging elements

E02F 3/627 ・・Devices to connect beams or arms to tractors or similar self-propelled machines, {e.g. drives therefor (Connection of beams or booms or arms to the frame per se E02F 3/382; connection of scraper bowls to the vehicle main body E02F 3/653; connecting devices for agriculture tractors A01B 59/06)}

E02F 3/6273 ・・・{using legs to support the beams or arms on the ground during the connecting process}

E02F 3/6276 ・・・{on one side of the frame}

E02F 3/633 ・・・Drives therefor {(not used, seeE02F 3/627)}

E02F 3/64 ・・Buckets cars, i.e. having scraper bowls {(for cable scrapers E02F 3/54 takes precedence; soil working machines in agriculture A01B)}

E02F 3/6409 ・・・{Self-propelled scrapers}

E02F 3/6418 ・・・・{with rotatable scraper bowls for dumping the soil (with only elements of the scraper bowls being pivotable E02F 3/6427)}

E02F 3/6427 ・・・・{with elements of the scraper bowls being pivotable for dumping the soil (E02F 3/6445 take precedence; with an ejector having translational movement E02F 3/6436)}

E02F 3/6436 ・・・・{with scraper bowls with an ejector having translational movement for dumping the soil (E02F 3/6445 takes precedence)}

E02F 3/6445 ・・・・{with conveying means for emptying the scraper bowl}

E02F 3/6454 ・・・{Towed (i.e. pulled or pushed) scrapers}

E02F 3/6463 ・・・・{with rotatable scraper bowls for dumping the soil (with only elements of the scraper bowls being pivotable E02F 3/6472)}

E02F 3/6472 ・・・・{with elements of the scraper bowls being pivotable for dumping the soil (E02F 3/649 takes precedence; with an ejector having translational movement E02F 3/6481)}

E02F 3/6481 ・・・・{with scraper bowls with an ejector having translational movement for dumping the soil (E02F 3/649 takes precedence)}

E02F 3/649 ・・・・{with conveying means for emptying the scraper bowl}

E02F 3/65 ・・・Component parts, e.g. drives, control devices

E02F 3/651 ・・・・{Hydraulic or pneumatic drives; Electric or electro-mechanical control devices (E02F 3/652, E02F 3/653 take precedence)}

E02F 3/652 ・・・・{Means to adjust the height of the scraper bowls, e.g. suspension means, tilt control, earth damping control}

E02F 3/653 ・・・・{Connection mechanisms to the main body of the machine (connection of tools to dipper-arms, booms, bucket-arms E02F 3/3604; connection of beams or booms or arms to tractors in general E02F 3/627)}

E02F 3/654 ・・・・{Scraper bowls and components mounted on them}

E02F 3/655 ・・・・・{Loading or elevator mechanisms (Loading devices for excavators in general E02F 7/04)}

E02F 3/656 ・・・・・{Ejector or dumping mechanisms (for buckets mounted on a dipper-arm or bucket arms E02F 3/407)}

E02F 3/657 ・・・・・{Means to prevent the spilling of dredged material, e.g. apron, baffle}

E02F 3/658 ・・・・・{Cutting edge (for graders or bulldozer blades E02F 3/8152, E02F 3/8155; teeth per se E02F 9/28)}

E02F 3/659 ・・・・・{Conveying means for emptying scraper bowls (conveying equipment for excavators in general E02F 7/02)}

E02F 3/76 ・・Graders, bulldozers, or the like with scraper plates or ploughshare-like elements (soil-working A01B); Levelling {scarifying} devices {(street cleaning E01H; construction of roads E01C19, E01C23)}

E02F 3/7604 ・・・{Combinations of scraper blades with soil loosening tools working independently of scraper blades (soil loosening attachments fixed on blades E02F 3/8152, E02F 3/8155)}

E02F 3/7609 ・・・{Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers}

E02F 3/7613 ・・・・{with the scraper blade adjustable relative to the pivoting arms about a vertical axis, e.g. angle dozers}

E02F 3/7618 ・・・・{with the scraper blade adjustable relative to the pivoting arms about a horizontal axis}

E02F 3/7622 ・・・{Scraper equipment with the scraper blade mounted on a frame to be hitched to the tractor by bars, arms, chains or the like, the frame having no ground supporting means of its own, e.g. drag scrapers}

E02F 3/7627 ・・・・{with the scraper blade adjustable relative to the frame about a vertical axis}

E02F 3/7631 ・・・・{with the scraper blade adjustable relative to the frame about a horizontal axis}

E02F 3/7636 ・・・{Graders with the scraper blade mounted under the tractor chassis}

E02F 3/764 ・・・・{with the scraper blade being pivotable about a vertical axis}

E02F 3/7645 ・・・・{with the scraper blade being pivotable about a horizontal axis disposed parallel to the blade}

E02F 3/765 ・・・・{with the scraper blade being pivotable about a horizontal axis disposed perpendicular to the blade}

E02F 3/7654 ・・・・{with the scraper blade being horizontally movable into a position near the chassis}

E02F 3/7659 ・・・・{with the vertical centre-line of the scraper blade disposed laterally relative to the central axis of the chassis}

E02F 3/7663 ・・・{Graders with the scraper blade mounted under a frame supported by wheels, or the like}

E02F 3/7668 ・・・・{with the scraper blade being pivotable about a vertical axis}

E02F 3/7672 ・・・・{with the scraper blade being pivotable about a horizontal axis disposed parallel to the blade}

E02F 3/7677 ・・・・{with the scraper blade being pivotable about a horizontal axis disposed perpendicular to the blade}

E02F 3/7681 ・・・・{with the scraper blade being horizontally movable into a position near the frame}

E02F 3/7686 ・・・・{with the vertical centre-line of the scraper blade disposed laterally relative to the central axis of the frame}

E02F 3/769 ・・・{Graders, bulldozers, or the like comprising loaders}

E02F 3/7695 ・・・{Graders, bulldozers or the like comprising elevators or conveyers}

E02F 3/78 ・・・with rotating digging elements

E02F 3/783 ・・・・{having a horizontal axis of rotation}

E02F 3/786 ・・・・{having a vertical axis of rotation}

E02F 3/80 ・・・Component parts

E02F 3/815 ・・・・Blades; Levelling{or scarifying}tools{(E02F 3/40 takes precedence)}

E02F 3/8152 ・・・・・{Attachments therefor, e.g. wear resisting parts, cutting edges (E02F 3/8155, E02F 3/8157 take precedence; teeth per se E02F 9/28)}

E02F 3/8155 ・・・・・{provided with movable parts, e.g. cutting discs, vibrating teeth or the like}

E02F 3/8157 ・・・・・{Shock absorbers; Supports, e.g. skids, rollers; Devices for compensating wear-and-tear, or the like}

E02F 3/84 ・・・・Drives or control devices therefor, {e.g. hydraulic drive systems}

E02F 3/841 ・・・・・{Devices for controlling and guiding the whole machine, e.g. by feeler elements and reference lines placed exteriorly of the machine (construction of roads E01C 19/008)}

E02F 3/842 ・・・・・・{using electromagnetic, optical or photoelectric beams, e.g. laser beams}

E02F 3/844 ・・・・・{for positioning the blade, e.g. hydraulically}

E02F 3/845 ・・・・・・{using mechanical sensors to determine the blade position, e.g. inclinometers, gyroscopes, pendulums}

E02F 3/847 ・・・・・・{using electromagnetic, optical or acoustic beams to determine the blade position, e.g. laser beams}

E02F 3/848 ・・・・・・{using cable drums}

E02F 3/88 ・・with arrangements acting by a sucking or forcing effect, e.g. suction dredgers (pumps in general F04)

E02F 3/8808 ・・・{Stationary installations, e.g. installations using spuds or other stationary supports (spuds on floating substructures per se E02F 9/062; cleaning the beds of waterways E02B 3/02)}

E02F 3/8816 ・・・{Mobile land installations}

E02F 3/8825 ・・・・{wherein at least a part of the soil-shifting equipment is mounted on a dipper-arm, backhoes or the like}

E02F 3/8833 ・・・{Floating installations (floating substructures per se E02F 9/06)}

E02F 3/8841 ・・・・{wherein at least a part of the soil-shifting equipment is mounted on a ladder or boom}

E02F 3/885 ・・・・{self propelled, e.g. ship}

E02F 3/8858 ・・・{Submerged units (self propelled units for burying conduits or cables in trenches under water E02F 5/105)}

E02F 3/8866 ・・・・{self propelled}

E02F 3/8875 ・・・・{pulled or pushed}

E02F 3/8883 ・・・{Using the force of explosions, e.g. by the use of internal combustion engines}

E02F 3/8891 ・・・{wherein at least a part of the soil-shifting equipment is handheld}

E02F 3/90 ・・・Component parts {e.g. arrangement or adaptation of pumps}

E02F 3/902 ・・・・{for modifying the concentration of the dredged material, e.g. relief valves preventing the clogging of the suction pipe}

E02F 3/905 ・・・・{Manipulating or supporting suction pipes or ladders; Mechanical supports or floaters therefor; pipe joints for suction pipes (for heave compensation E02F 9/067 takes precedence; pipelines per se E02F 7/10; joints for pipes in general F16L)}

E02F 3/907 ・・・・{Measuring or control devices, e.g. control units, detection means or sensors (E02F 3/902 takes precedence)}

E02F 3/92 ・・・・Digging elements, e.g. suction heads

E02F 3/9206 ・・・・・{Digging devices using blowing effect only, like jets or propellers (E02F 5/107 takes precedence; passive suction heads with jets E02F 3/925; active suction heads with jets E02F 3/9262; drilling by jets E21B 7/18; slitting by jets E21C 25/60)}

E02F 3/9212 ・・・・・{Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel (E02F 3/9287 takes precedence; Active suction heads E02F 3/9256)}

E02F 3/9218 ・・・・・・{with jets}

E02F 3/9225 ・・・・・・{with rotating cutting elements}

E02F 3/9231 ・・・・・・・{Suction wheels with axis of rotation parallel to longitudinal axis of the suction pipe}

E02F 3/9237 ・・・・・・・{Suction wheels with axis of rotation in transverse direction of the longitudinal axis of the suction pipe}

E02F 3/9243 ・・・・・{Passive suction heads with no mechanical cutting means (E02F 5/108 takes precedence)}

E02F 3/925 ・・・・・・{with jets}

E02F 3/9256 ・・・・・{Active suction heads; Suction heads with cutting elements, i.e. the cutting elements are mounted within the housing of the suction head (E02F 5/108 takes precedence)}

E02F 3/9262 ・・・・・・{with jets}

E02F 3/9268 ・・・・・・{with rotating cutting elements}

E02F 3/9275 ・・・・・・・{with axis of rotation parallel to longitudinal axis of the suction pipe}

E02F 3/9281 ・・・・・・・{with axis of rotation in horizontal and transverse direction of the suction pipe}

E02F 3/9287 ・・・・・{Vibrating suction heads}

E02F 3/9293 ・・・・・{Component parts of suction heads, e.g. edges, strainers for preventing the entry of stones or the like}

E02F 3/94 ・・・・Apparatus for separating stones from the dredged material, {i.e. separating or treating dredged material (screening plants mounted on dredger therefor E02F 7/06)}

E02F 3/945 ・・・・・{for environmental purposes}

E02F 3/96 ・・with arrangements for alternate {or simultaneous} use of different digging elements {(E02F 3/7604, E02F 3/769, E02F 3/78 take precedence; quick-acting devices to connect tools to arms or booms E02F 3/3609, for arms to tractors or the like E02F 3/627)}

E02F 3/961 ・・・{with several digging elements or tools mounted on one machine (for backhoes E02F 3/964 takes precedence)}

E02F 3/962 ・・・{Mounting of implements directly on tools already attached to the machine (E02F 3/404 and E02F 3/8152 take precedence)}

E02F 3/963 ・・・{Arrangements on backhoes for alternate use of different tools (backhoes per se E02F 3/30; quick-acting devices to connect tools to arms E02F 3/3609, for arms to tractors or the like E02F 3/627)}

E02F 3/964 ・・・・{of several tools mounted on one machine (E02F 3/962 takes precedence)}

E02F 3/965 ・・・{of metal-cutting or concrete-crushing implements (shearing devices B23D 17/00; wrecking of buildings, e.g. tools therefor, E04F 23/08)}

E02F 3/966 ・・・{of hammer-type tools (arrangements for breaking-up hard ground E02F 5/305; percussion -type rippers E02F 5/323)}

E02F 3/967 ・・・{of compacting-type tools (compacting tools in combination with special-purpose dredges or soil-shifting machines E02F 5/30)}

E02F 3/968 ・・・{Storing, handling or otherwise manipulating tools when detached from the machine (E02F 3/6273 takes precedence)}

E02F 5/00 Dredgers or soil-shifting machines for special purposes

E02F 5/003 ・{for uncovering conduits}

E02F 5/006 ・{adapted for working ground under water not otherwise provided for (E02F 3/081, E02F 3/4131, E02F 3/8833, E02F 5/104, E02F 5/125, E02F 7/005, E02F 7/023, E02F 7/065, E02F 9/026, E02F 9/045, E02F 9/06 take precedence)}

E02F 5/02 ・for digging trenches or ditches ({machines for making foundation slots E02F 3/205, E02F 3/475 take precedence}; agricultural ploughs for working ridges A01B 13/02)

E02F 5/022 ・・{with tools digging laterally with respect to the frame}

E02F 5/025 ・・{with scraper-buckets, dippers or shovels}

E02F 5/027 ・・{with coulters, ploughs, scraper plates, or the like (E02F 5/102, E02F 5/103, E02F 5/106 take precedence)}

E02F 5/04 ・・with digging screws {(E02F 5/109 takes precedence; with digging screws per se E02F 3/06)}

E02F 5/06 ・・with digging elements mounted on an endless chain {(E02F 5/109 takes precedence; with digging elements mounted on an endless chain per se E02F 3/08)}

E02F 5/08 ・・with digging wheels turning round an axis {(E02F 5/109 takes precedence; with digging wheels per se E02F 3/18)}

E02F 5/10 ・・with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables (laying pipes per se F16L 1/00, making pipes in situ F16L 1/038; laying electric cables per se H02G 1/06; {drainage device- laying apparatus E02B 11/02})

E02F 5/101 ・・・{forming during digging, e.g. underground canalisations or conduits, by bending or twisting a strip of pliable material; by extrusion}

E02F 5/102 ・・・{operatively associated with mole-ploughs, coulters (rippers E02F 5/32)}

E02F 5/103 ・・・・{with oscillating or vibrating digging tools}

E02F 5/104 ・・・{for burying conduits or cables in trenches under water (floating substructures per se E02F 9/06)}

E02F 5/105 ・・・・{self-propulsed units moving on the underwater bottom}

E02F 5/106 ・・・・{using ploughs, coulters, rippers}

E02F 5/107 ・・・・{using blowing-effect devices, e.g. jets (digging devices using a blowing effect per se E02F 3/9206)}

E02F 5/108 ・・・・{using suction-effect devices (suction heads per se E02F 3/9243, E02F 3/9256)}

E02F 5/109 ・・・・{using rotating digging elements (rotating digging elements per se E02F 3/18)}

E02F 5/12 ・・with equipment for back-filling trenches or ditches

E02F 5/125 ・・・{underwater}

E02F 5/14 ・・Component parts for trench excavators, e.g. indicating devices {travelling gear chassis, supports, skids}

E02F 5/145 ・・・{control and indicating devices}

E02F 5/16 ・Machines for digging other holes in the soil (earth drilling E21)

E02F 5/18 ・・for horizontal holes {or inclined holes}

E02F 5/20 ・・for vertical holes

E02F 5/22 ・for making embankments; for back-filling (in combination with trench excavators E02F 5/12)

E02F 5/223 ・・{for back-filling (in association with trench excavators E02F 5/12)}

E02F 5/226 ・・・{with means for processing the soil, e.g. screening belts, separators; Padding machines}

E02F 5/24 ・・Depositing dredged material in mounds

E02F 5/26 ・・Combined conveying-bridges and dredgers

E02F 5/28 ・for cleaning watercourses or other ways {(stream regulation E02B 3/02)}

E02F 5/282 ・・{with rotating cutting or digging tools}

E02F 5/285 ・・{with drag buckets or scraper plates}

E02F 5/287 ・・{with jet nozzles (digging devices with blowing effect per se E02F 3/9206)}

E02F 5/30 ・Auxiliary apparatus, e.g. for tawing, craking, blowing-up, or other preparatory treatment of the soil

E02F 5/305 ・・{Arrangements for breaking-up hard ground (E02F 5/32 takes precedence; hammer-type tools E02F 3/966; breaking-up paving of roads or the like E01C 23/12; breaking-up subaqueous rock E02B 3/02)}

E02F 5/32 ・・Rippers {(E02F 5/106 takes precedence, ripper or scarifying teeth mounted on blades E02F 3/8152; ripper tips E02F 9/2875)}

E02F 5/323 ・・・{Percussion-type rippers}

E02F 5/326 ・・・{oscillating or vibrating}

E02F 7/00 Equipment for conveying or separating excavated material (barges adapted for carrying-away material from floating dredgers B63B 35/28)

E02F 7/005 ・{conveying material from the underwater bottom (by pipelines E02F 7/10; suction dredgers E02F 3/88)}

E02F 7/02 ・Conveying equipment mounted on dredgers or excavators (conveyers in general B65G){(in combination with graders or bulldozers E02F 3/7695; in combination with rotating digging wheels E02F 3/181; in combination with bucket-arms E02F 3/348; in combination with digging elements mounted on an endless chain E02F 3/082, E02F 3/083)}

E02F 7/023 ・・{mounted on a floating dredger}

E02F 7/026 ・・{mounted on machines equipped with dipper- or bucket-arms}

E02F 7/04 ・Loading devices mounted on a dredger or an excavator (loading devices in general B65G){hopper dredgers, also equipment for unloading the hopper}

E02F 7/06 ・Delivery chutes or screening plants {or mixing plants} mounted on dredgers or excavators ({for back-filling E02F 5/226 takes precedence}; separating equipment in general B03; delivery chutes in general B65G)

E02F 7/065 ・・{mounted on a floating dredger}

E02F 7/10 ・Pipelines for conveying excavated materials (pipes in general F16L; pipe-lines systems F17D){conveying by liquid pressure B65G 53/30}

E02F 9/00 Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F 3/00 to E02F 7/00(laying-out or take-up devices for trailing electric cables B66C)

E02F 9/003 ・{Devices for transporting the soil-shifting machines or excavators, e.g. by pushing them or by hitching them to a tractor}

E02F 9/006 ・{Pivot joint assemblies (in general F16C 11/04)}

E02F 9/02 ・Travelling-gear, e.g. associated with slewing gears ({drives therefor E02F 9/20}; for motor vehicles B60B, G; undercarriages for locomotives or rail-road cars B61F; track-laying vehicles B62D; for cranes B66C 23/18)

E02F 9/022 ・・{for moving on rails}

E02F 9/024 ・・{with laterally or vertically adjustable wheels or tracks (for vehicles in general B60B 35/10; B62D 55/084)}

E02F 9/026 ・・{for moving on the underwater bottom (marine propulsion by direct engagement with water-bed or ground B63H 19/08)}

E02F 9/028 ・・{with arrangements for levelling the machine (hydraulic drives therefor E02F 9/2257)}

E02F 9/04 ・・Walking gears moving the dredger forward step-by-step

E02F 9/045 ・・・[for moving on the underwater bottom (for artificial islands E02B 17/022; marine propulsion by direct engagement with water-bed or ground B63H 19/08)]

E02F 9/06 ・Floating substructures as supports {(floating installations with arrangements acting by a sucking or forcing effect E02F 3/8833)}

E02F 9/062 ・・{Advancing equipment, e.g. spuds for floating dredgers}

E02F 9/065 ・・・{characterised by the use of lines with anchors and winches}

E02F 9/067 ・・{with arrangements for heave compensation (for drilling structures E21B 19/09; for lifting devices B66C 13/02)}

E02F 9/08 ・Superstructures; Supports for superstructures {(arrangements for travelling gear, e.g. undercarriages for wheels, crawlers, caterpillars E02F 9/02; for motor vehicles B62D 25/00, B62D 33/00)}

E02F 9/0808 ・・{Improving mounting or assembling, e.g. frame elements, disposition of all the components on the superstructures (for disposition of specific components, E02F 9/0858)}

E02F 9/0816 ・・・{Welded frame structure}

E02F 9/0825 ・・・{Cast frame structure}

E02F 9/0833 ・・{Improving access, e.g. for maintenance, steps for improving driver's access, handrails}

E02F 9/0841 ・・{Articulated frame, i.e. having at least one pivot point between two travelling gear units (tractor-trailer combinations B62D 53/00)}

E02F 9/085 ・・{Ground-engaging fitting for supporting the machines while working, e.g. outriggers, legs (for vehicles in general B60S 9/00, for cranes B66C 23/78)}

E02F 9/0858 ・・{Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units (E02F 9/16, E02F 9/18 take precedence)}

E02F 9/0866 ・・・{Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment}

E02F 9/0875 ・・・{Arrangement of valve arrangements on superstructures (arrangement of hydraulic hoses E02F 9/2275 takes precedence; valves per se E02F 9/2267)}

E02F 9/0883 ・・・{Tanks, e.g. oil tank, urea tank, fuel tank (for vehicles in general B60K15)}

E02F 9/0891 ・・・{Lids or bonnets or doors or details thereof (doors for cabins E02F 9/163 takes precedence; for motor vehicles B62D 25/10)}

E02F 9/10 ・・Supports for movable superstructures mounted on travelling or walking gears or on other superstructures

E02F 9/12 ・・・Slewing or traversing gears (roller and ball bearings F16C)

E02F 9/121 ・・・・{Turntables, i.e. structure rotatable about 360?}

E02F 9/123 ・・・・・{Drives or control devices specially adapted therefor (E02F 9/125 and E02F 9/128 take precedence)}

E02F 9/125 ・・・・・{Locking devices}

E02F 9/126 ・・・・・{Lubrication systems}

E02F 9/128 ・・・・・{Braking systems}

E02F 9/14 ・Booms {only for booms with cable suspension arrangements (for booms or manipulators with cable suspensions for suction pipes E02F 3/905 takes precedence; for booms per se E02F 3/38; E02F 3/34 for bucket-arms)}; Cable suspensions

E02F 9/16 ・Cabins, platforms, or the like, for drivers ({for motor vehicles in general B62D 33/06}, for cranes B66C 13/54)

E02F 9/163 ・・{Structures to protect drivers, e.g. cabins, doors for cabins; Falling object protection structure (FOPS); Roll over protection structure (ROPS) (for handrails mounted on cabins E02F 9/0833 takes precedence; for vehicles in general B60R 21/11, B60R 21/13, for fork-lift trucks B66F 9/07545)}

E02F 9/166 ・・{movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins (seats for vehicles in general B60N2)}

E02F 9/18 ・Counterweights {(for cranes B66C 23/72, for tractors B62D 49/085)}

E02F 9/20 ・Drives; Control devices (gearings in general F16H; controlling in general G05; electric multi-motor drives H02K, H02P)

E02F 9/2004 ・・{Control mechanisms, e.g. control levers (control levers per se G05G)}

E02F 9/2008 ・・・{Control mechanisms in the form of the machine in the reduced scale model}

E02F 9/2012 ・・・{Setting the functions of the control levers, e.g. changing assigned functions among operations levers, setting functions dependent on the operator or seat orientation}

E02F 9/2016 ・・{Winches (winches per se B66D)}

E02F 9/202 ・・{Mechanical transmission, e.g. clutches, gears (clutches per se F16D, gears per se F16H)}

E02F 9/2025 ・・{Particular purposes of control systems not otherwise provided for (E02F 3/16, E02F 3/26, sub-groups of E02F 3/43, E02F 3/651, sub-groups of E02F 3/84, E02F 3/907, E02F 5/145 take precedence)}

E02F 9/2029 ・・・{Controlling the position of implements in function of its load, e.g. modifying the attitude of implements in accordance to vehicle speed (control for hydraulic or pneumatic drives E02F 9/2203, E02F 9/2221 and E02F 9/2253 take precedence)}

E02F 9/2033 ・・・{Limiting the movement of frames or implements, e.g. to avoid collision between implements and the cabin (sub-groups of E02F 3/431 of E02F 3/435 take precedence; for turntables E02F 9/123)}

E02F 9/2037 ・・・{Coordinating the movements of the implement and of the frame}

E02F 9/2041 ・・・{Automatic repositioning of implements, i.e. memorising determined positions of the implement (for dipper-arms or bucket-arms E02F 3/434, E02F 3/437, E02F 3/438, E02F 3/439 take precedence)}

E02F 9/2045 ・・・{Guiding machines along a predetermined path (for graders E02F 3/841; machines for construction of roads E01C 19/004)}

E02F 9/205 ・・・{Remotely operated machines, e.g. unmanned vehicles (E02F 3/8866 takes precedence)}

E02F 9/2054 ・・・{Fleet management}

E02F 9/2058 ・・{Electric or electro-mechanical or mechanical control devices of vehicle sub-units (for vehicles in general B60W)}

E02F 9/2062 ・・・{Control of propulsion units (for control of the prime mover depending on the load in a hydraulic or pneumatic drive E02F 9/2246)}

E02F 9/2066 ・・・・{of the type combustion engines}

E02F 9/207 ・・・・{of the type electric propulsion units, e.g. electric motors or generators}

E02F 9/2075 ・・・・{of the hybrid type (for vehicles in general B60W20)}

E02F 9/2079 ・・・{Control of mechanical transmission (for hydrostatic transmission or hydraulic torque converter E02F 9/2253)}

E02F 9/2083 ・・・{Control of vehicle braking systems}

E02F 9/2087 ・・・{Control of vehicle steering (for steering with hydraulic or pneumatic drives E02F 9/225)}

E02F 9/2091 ・・・{Control of energy storage means for electrical energy, e.g. battery or capacitors (energy recovery arrangements in hydraulic or pneumatic drives E02F 9/2217)}

E02F 9/2095 ・・・{Control of electric, electro-mechanical or mechanical equipment not otherwise provided for, e.g. ventilators, electro-driven fans (control of hydraulic driven equipment E02F 9/22)}

E02F 9/22 ・・Hydraulic or pneumatic drives {(for dipper or bucket arm position control E02F 3/43, for blade position control for graders E02F 3/844; for turntables E02F 9/121; for fork-lift trucks B66F 9/22)}

E02F 9/2203 ・・・{Arrangements for controlling the attitude of actuators, e.g. speed, floating function}

E02F 9/2207 ・・・・{for reducing or compensating oscillations}

E02F 9/221 ・・・・{for generating actuator vibration (buckets with vibrating means E02F 3/405)}

E02F 9/2214 ・・・・{for reducing the shock generated at the stroke end}

E02F 9/2217 ・・・{with energy recovery arrangements, e.g. using accumulators, flywheels}

E02F 9/2221 ・・・{Control of flow rate; Load sensing arrangements (E02F 9/2203 take precedence over E02F 9/2221)}

E02F 9/2225 ・・・・{using pressure-compensating valves}

E02F 9/2228 ・・・・・{including an electronic controller}

E02F 9/2232 ・・・・{using one or more variable displacement pumps}

E02F 9/2235 ・・・・・{including an electronic controller}

E02F 9/2239 ・・・・{using two or more pumps with cross-assistance}

E02F 9/2242 ・・・・・{including an electronic controller}

E02F 9/2246 ・・・{Control of prime movers, e.g. depending on the hydraulic load of work tools}

E02F 9/225 ・・・{Control of steering, e.g. for hydraulic motors driving the vehicle tracks (steering in general B62D)}

E02F 9/2253 ・・・{Controlling the travelling speed of vehicles, e.g. adjusting travelling speed according to implement loads, control of hydrostatic transmission}

E02F 9/2257 ・・・{Vehicle levelling or suspension systems (suspensions for vehicles in general B60G)}

E02F 9/226 ・・・{Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating}

E02F 9/2264 ・・・{Arrangements or adaptations of elements for hydraulic drives}

E02F 9/2267 ・・・・{Valves or distributors (position of valves arrangements on upper-structures E02F 9/0875)}

E02F 9/2271 ・・・・{Actuators and supports therefor and protection therefor}

E02F 9/2275 ・・・・{Hoses and supports therefor and protection therefor}

E02F 9/2278 ・・・{Hydraulic circuits (not used)}

E02F 9/2282 ・・・・{Systems using center bypass type changeover valves}

E02F 9/2285 ・・・・{Pilot-operated systems}

E02F 9/2289 ・・・・{Closed circuit}

E02F 9/2292 ・・・・{Systems with two or more pumps}

E02F 9/2296 ・・・・{Systems with a variable displacement pump}

E02F 9/24 ・Safety devices {e.g. for preventing overload (E02F 9/226 takes precedence)}

E02F 9/245 ・・{for preventing damage to underground objects during excavation, e.g. indicating buried pipes or the like (detection of pipes in the ground F16L 1/11)}

E02F 9/26 ・Indicating devices {(E02F 5/145 takes precedence)}

E02F 9/261 ・・{Surveying the work-site to be treated}

E02F 9/262 ・・・{with follow-up actions to control the work tool, e.g. controller}

E02F 9/264 ・・{Sensors and their calibration for indicating the position of the work tool}

E02F 9/265 ・・・{with follow-up actions (e.g. control signals sent to actuate the work tool)}

E02F 9/267 ・・{Diagnosing or detecting failure of vehicles}

E02F 9/268 ・・・{with failure correction follow-up actions}

E02F 9/28 ・Small metalwork for digging elements, e.g. teeth {scraper bits (ploughs for agriculture A01B 15/00; teeth of harrows A01B 23/02)}

E02F 9/2808 ・・{Teeth}

E02F 9/2816 ・・・{Mountings therefor}

E02F 9/2825 ・・・・{using adapters}

E02F 9/2833 ・・・・{Retaining means, e.g. pins}

E02F 9/2841 ・・・・・{resilient}

E02F 9/285 ・・・{characterised by the material used}

E02F 9/2858 ・・・{characterised by shape}

E02F 9/2866 ・・{for rotating digging elements (for milling machines B28D 1/186; for mining machines E21C 35/18)}

E02F 9/2875 ・・{Ripper tips}

E02F 9/2883 ・・{Wear elements for buckets or implements in general}

E02F 9/2891 ・・{Tools for assembling or disassembling}