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E02F 1/00
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General working methods with dredgers or soil-shifting machines |
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E02F 3/00
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Dredgers; Soil-shifting machines |
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E02F 3/02
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Dredgers; Soil-shifting machines hand-operated |
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E02F 3/04
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Dredgers; Soil-shifting machines mechanically-driven |
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E02F 3/06
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Dredgers; Soil-shifting machines mechanically-driven with digging screws |
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E02F 3/08
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Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain |
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E02F 3/10
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Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain with tools that only loosen the material |
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E02F 3/12
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Component parts |
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E02F 3/14
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Buckets; Chains; Guides for buckets or chains; Drives for chains |
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E02F 3/16
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Safety or control devices |
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E02F 3/18
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Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis |
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E02F 3/20
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Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis with tools that only loosen the material |
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E02F 3/22
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Component parts |
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E02F 3/24
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Digging wheels; Digging elements of wheels; Drives for wheels |
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E02F 3/26
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Safety or control devices |
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E02F 3/28
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Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets |
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E02F 3/30
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Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam |
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E02F 3/32
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Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam working downwardly and towards the machine, e.g. with backhoes |
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E02F 3/34
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Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, e.g. dippers, buckets with bucket-arms directly pivoted on the frames of tractors or self-propelled machines |
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E02F 3/36
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Component parts |
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E02F 3/38
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Cantilever beams; Dipper-arms; Bucket-arms |
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E02F 3/39
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Cantilever beams; Dipper-arms; Bucket-arms with telescopic arms |
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E02F 3/40
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Dippers; Buckets |
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E02F 3/42
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Drives for dippers, buckets, dipper-arms or bucket-arms |
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E02F 3/43
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Control of dipper or bucket position; Control of sequence of drive operations |
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E02F 3/46
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Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes |
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E02F 3/47
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Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes with grab buckets |
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E02F 3/48
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Drag-lines |
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E02F 3/50
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Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes with buckets or other digging elements moved along a rigid guideway |
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E02F 3/52
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Cableway excavators |
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E02F 3/54
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Cable scrapers |
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E02F 3/56
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Cable scrapers with hand-controlled scraper or other digging elements |
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E02F 3/58
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Component parts |
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E02F 3/60
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Buckets, scrapers, or other digging elements |
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E02F 3/64
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Bucket cars, i.e. having scraper bowls |
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E02F 3/65
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Component parts, e.g. drives, control devices |
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E02F 3/76
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Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling devices |
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E02F 3/78
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Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling devices with rotating digging elements |
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E02F 3/80
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Component parts |
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E02F 3/84
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Drives or control devices therefor |
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E02F 3/85
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Applications of hydraulic or pneumatic systems |
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E02F 3/88
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Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers |
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E02F 3/90
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Component parts, e.g. drives, control devices |
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E02F 3/92
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Digging elements, e.g. suction heads |
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E02F 3/94
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Apparatus for separating stones from the dredged material |
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E02F 3/96
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Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate use of different digging elements |
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E02F 3/342
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Buckets emptying overhead |
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E02F 3/345
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Buckets emptying side-ways |
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E02F 3/348
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Buckets emptying into a collecting or conveying device |
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E02F 3/352
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Buckets movable along a fixed guide |
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E02F 3/355
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Buckets connected to the rear end of a tractor |
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E02F 3/358
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Bucket-arms pivoted on a turntable being part of a tractor frame |
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E02F 3/407
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Dippers; Buckets with ejecting device |
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E02F 3/413
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Dippers; Buckets with grabbing device |
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E02F 3/627
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Devices to connect beams or arms to a tractor or similar self-propelled machine |
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E02F 3/633
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Drives therefor |
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E02F 3/815
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Blades; Levelling tools |
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E02F 5/00
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Dredgers or soil-shifting machines for special purposes |
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E02F 5/02
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Dredgers or soil-shifting machines for special purposes for digging trenches or ditches |
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E02F 5/04
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Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging screws |
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E02F 5/06
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Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging elements mounted on an endless chain |
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E02F 5/08
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Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis |
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E02F 5/10
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Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for making or assembling conduits or for laying conduits or cables |
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E02F 5/12
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Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with equipment for back-filling trenches or ditches |
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E02F 5/14
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Component parts for trench excavators, e.g. indicating devices |
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E02F 5/16
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Machines for digging other holes in the soil |
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E02F 5/18
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Machines for digging other holes in the soil for horizontal holes |
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E02F 5/20
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Machines for digging other holes in the soil for vertical holes |
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E02F 5/22
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Dredgers or soil-shifting machines for special purposes for back-filling |
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E02F 5/24
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Depositing dredged material in mounds |
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E02F 5/26
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Combined conveying-bridges and dredgers |
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E02F 5/28
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Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other waters |
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E02F 5/30
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Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil |
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E02F 5/32
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Rippers |
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E02F 7/00
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Equipment for conveying or separating excavated material |
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E02F 7/02
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Conveying equipment mounted on a dredger |
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E02F 7/04
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Loading devices mounted on a dredger |
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E02F 7/06
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Delivery chutes or screening plants mounted on a dredger |
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E02F 7/10
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Pipe-lines for conveying excavated materials |
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E02F 9/00
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Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups |
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E02F 9/02
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Travelling gear |
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E02F 9/04
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Walking gears moving the dredger forward step-by-step |
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E02F 9/06
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Floating substructures as supports |
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E02F 9/08
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Superstructures; Supports for superstructures |
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E02F 9/10
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Supports for movable superstructures mounted on travelling or walking gears or on other superstructures |
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E02F 9/12
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Slewing or traversing gears |
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E02F 9/14
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Booms; Cable suspensions |
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E02F 9/16
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Cabins, platforms, or the like for the driver |
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E02F 9/18
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Counterweights |
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E02F 9/20
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Drives; Control devices |
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E02F 9/22
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Hydraulic or pneumatic drives |
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E02F 9/24
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Safety devices |
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E02F 9/26
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Indicating devices |
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E02F 9/28
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Small metalwork for digging elements, e.g. teeth |
