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Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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DREDGING; SOIL-SHIFTING (winning peat E21C 49/00)
NOTE
-
This subclass covers :
- primarily equipment for excavating or loosening earth or for moving loose earth;
- equipment for working similarly on other materials and similar equipment for loading or unloading materials

WARNING
-
The following IPC groups are not used in the CPC scheme. Subject matter covered by these groups is classified in the following CPC groups:


General working methods with dredgers or soil-shifting machines (methods for making embankments E02D 17/18; methods for mining E21C)
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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)
}
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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)
}
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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
}
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E02F 3/12
. . .
Component parts
{
e.g. bucket troughs
}
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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)
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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 E21C 25/00; methods or apparatus for making tunnels or galleries E21D 9/00)
}
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
}
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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)
}
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E02F 3/22
. . .
Component parts
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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)
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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
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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)
}
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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
}
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E02F 3/32
. . . .
working downwardly and towards the machine, e.g. with backhoes
E02F 3/325
. . . . .
{
Backhoes of the miniature type
}
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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)
}
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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)
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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
}
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E02F 3/36
. . .
Component parts
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E02F 3/3604
. . . .
{
Devices to connect tools to arms, booms or the like
}
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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 F16L 37/00)
}
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
}
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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
}
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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)
}
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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)
}
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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
}
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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)
}
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E02F 3/407
. . . . .
with ejecting
{
or other unloading
}
device
E02F 3/4075
. . . . . .
{
Dump doors; Control thereof
}
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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
}
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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)
}
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E02F 3/43
. . . . .
Control of dipper or bucket position; Control of sequence of drive operations
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E02F 3/431
. . . . . .
{
for bucket-arms, front-end loaders, dumpers or the like
}
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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
}
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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)
}
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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)
}
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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)
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E02F 3/54
. . .
Cable scrapers
{
(E02F 3/48, E02F 3/52 take precedence)
}
E02F 3/56
. . . .
with hand-controlled scraper or other digging elements
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E02F 3/58
. . .
Component parts
{
(E02F 9/14, E02F 3/905 take precedence)
}
E02F 3/60
. . . .
Buckets, scrapers, or other digging elements
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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)
}
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E02F 3/64
. .
Buckets cars, i.e. having scraper bowls
{
(for cable scrapers E02F 3/54 takes precedence; soil working machines in agriculture A01B)
}
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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
}
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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
}
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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)
}
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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)
}
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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 E01C 19/00, E01C 23/00)
}
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)
}
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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
}
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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
}
Collapse
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
}
Collapse
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
}
Collapse
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
}
Collapse
E02F 3/80
. . .
Component parts
Collapse
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
}
Collapse
E02F 3/84
. . . .
Drives or control devices therefor,
{
e.g. hydraulic drive systems
}
Collapse
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
}
Collapse
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
}
Collapse
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)
}
Collapse
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
}
Collapse
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
}
Collapse
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
}
Collapse
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)
}
Collapse
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)
}
Collapse
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
}
Collapse
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
}
Collapse
E02F 3/9243
. . . . .
{
Passive suction heads with no mechanical cutting means (E02F 5/108 takes precedence)
}
E02F 3/925
. . . . . .
{
with jets
}
Collapse
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
}
Collapse
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
}
Collapse
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
}
Collapse
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)
}
Collapse
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, E04G 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)
}
Collapse
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)
}
Collapse
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)
}
Collapse
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
}
Collapse
E02F 5/102
. . .
{
operatively associated with mole-ploughs, coulters (rippers E02F 5/32)
}
E02F 5/103
. . . .
{
with oscillating or vibrating digging tools
}
Collapse
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)
}
Collapse
E02F 5/12
. .
with equipment for back-filling trenches or ditches
E02F 5/125
. . .
{
underwater
}
Collapse
E02F 5/14
. .
Component parts for trench excavators, e.g. indicating devices
{
travelling gear chassis, supports, skids
}
E02F 5/145
. . .
{
control and indicating devices
}
Collapse
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
Collapse
E02F 5/22
.
for making embankments; for back-filling (in combination with trench excavators E02F 5/12)
Collapse
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
Collapse
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)
}
Collapse
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)
}
Collapse
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
}
Collapse
Equipment for conveying or separating excavated material (barges adapted for carrying-away material from floating dredgers B63B 35/28)
.
{
conveying material from the underwater bottom (by pipelines E02F 7/10; suction dredgers E02F 3/88)
}
Collapse
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
}
. .
{
mounted on machines equipped with dipper- or bucket-arms
}
.
Loading devices mounted on a dredger or an excavator (loading devices in general B65G)
{
hopper dredgers, also equipment for unloading the hopper
}
Collapse
.
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
}
.
Pipelines for conveying excavated materials (pipes in general F16L; pipe-lines systems F17D)
{
conveying by liquid pressure B65G 53/30
}
Collapse
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)
}
Collapse
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)
}
Collapse
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)]
Collapse
E02F 9/06
.
Floating substructures as supports
{
(floating installations with arrangements acting by a sucking or forcing effect E02F 3/8833)
}
Collapse
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)
}
Collapse
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)
}
Collapse
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)
}
Collapse
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 B60K 15/00)
}
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)
}
Collapse
E02F 9/10
. .
Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
Collapse
E02F 9/12
. . .
Slewing or traversing gears (roller and ball bearings F16C)
Collapse
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
Collapse
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 B60N 2/00)
}
E02F 9/18
.
Counterweights
{
(for cranes B66C 23/72, for tractors B62D 49/085)
}
Collapse
E02F 9/20
.
Drives; Control devices (gearings in general F16H; controlling in general G05; electric multi-motor drives H02K, H02P)
Collapse
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)
}
Collapse
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
}
Collapse
E02F 9/2058
. .
{
Electric or electro-mechanical or mechanical control devices of vehicle sub-units (for vehicles in general B60W)
}
Collapse
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 B60W 20/00)
}
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)
}
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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)
}
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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
}
Collapse
E02F 9/2221
. . .
{
Control of flow rate; Load sensing arrangements (E02F 9/2203 take precedence over E02F 9/2221)
}
Collapse
E02F 9/2225
. . . .
{
using pressure-compensating valves
}
E02F 9/2228
. . . . .
{
including an electronic controller
}
Collapse
E02F 9/2232
. . . .
{
using one or more variable displacement pumps
}
E02F 9/2235
. . . . .
{
including an electronic controller
}
Collapse
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
}
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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
}
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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
}
Collapse
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)
}
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E02F 9/26
.
Indicating devices
{
(E02F 5/145 takes precedence)
}
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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
}
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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)
}
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E02F 9/267
. .
{
Diagnosing or detecting failure of vehicles
}
E02F 9/268
. . .
{
with failure correction follow-up actions
}
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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)
}
Collapse
E02F 9/2808
. .
{
Teeth
}
Collapse
E02F 9/2816
. . .
{
Mountings therefor
}
E02F 9/2825
. . . .
{
using adapters
}
Collapse
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
}
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013