Patents
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
12/1994
12/21/1994CN2185765Y Dredging and soil-shifting machine
12/20/1994US5373902 Tiltable hood assembly for an earth working machine
12/20/1994US5373652 Sweeping appliance for excavators
12/14/1994EP0628664A2 Loader vehicle
12/09/1994CA2124703A1 Loader vehicle
12/08/1994WO1994028256A1 Apparatus for pneumatic excavation
12/07/1994EP0627033A1 Front end loader attachment convertible between loading bucket and side-shift-angle dozer configurations
12/07/1994EP0386264B1 Engine output controller in a caterpillar vehicle
12/06/1994US5370190 Land levelling machine
12/06/1994CA1333416C Pivotal movement control device for boom-equipped working machine
12/01/1994DE4324339A1 Assembly and repair pit and process for producing the same
12/01/1994DE4317553A1 Method and apparatus for soil exchange, in particular on slopes
11/1994
11/30/1994EP0626482A2 Bucket dredger
11/30/1994EP0626025A1 Lock assembly for wearable structure
11/30/1994EP0626024A1 Masterhitch excavator bucket coupling system.
11/29/1994US5367798 Connector pin assembly for bucket rigging
11/29/1994US5367796 Multitote carrier for excavator
11/24/1994WO1994026988A1 Coordinated control for a work implement
11/24/1994WO1994026987A1 Detachable link for an endless cutting or kerfing chain
11/24/1994DE4417832A1 Cutter in particular for breaker of concrete structural parts
11/23/1994EP0625614A2 Multipurpose construction vehicle
11/23/1994EP0625613A1 Coupling device for attaching an implement to an arm of an excavator
11/15/1994CA1333062C Pipeline padding apparatus
11/10/1994WO1994025689A1 Implement coupling for excavator or loader
11/10/1994WO1994025191A1 Method and apparatus for in situ soil remediation
11/10/1994DE4315764A1 Process and apparatus for desludging flat bodies of water
11/09/1994EP0623753A1 Automatic cushioning control apparatus for cylinder of working machine
11/09/1994EP0623709A2 Multipurpose bucket structure
11/09/1994EP0564501B1 A linkage arrangement for a multi-purpose vehicle
11/08/1994US5363304 Method for controlling a hydraulic excavator
11/08/1994US5362029 Lift limit device for a load lifting mechanism
11/08/1994US5361999 Crusher having a stationary jaw body and a movable jaw body
11/08/1994US5361855 Method and casing for excavating a borehole
11/08/1994CA1332967C Articulated arm control
11/03/1994DE4314293A1 Swivel device for suspended loads
11/02/1994CN2181535Y Gravity pendulum mud drag (suction dredger)
11/02/1994CN2181534Y Waterway excavating conveyer
11/01/1994US5360313 Coupling for heavy-duty machine
11/01/1994US5360312 Three function control mechanism
11/01/1994US5359775 Steel-material shearing machine
10/1994
10/29/1994CA2095088A1 Hydraulic excavating machine
10/27/1994WO1994024376A1 Combination bucket
10/27/1994WO1994023559A1 Attachment for a grab implement
10/25/1994US5359517 Method and device for automating operation of construction machine
10/25/1994US5358342 Pivot assembly with gravity lubrication feature
10/25/1994CA2015719C Continuously operating open-cast mining device with a cylindrical breaking tool
10/25/1994CA2002967C Metal cutting shear with changeable multiple cutting edge portions
10/19/1994EP0473590B1 A caterpillar-driven excavating machine equipped with a separate working tool
10/18/1994US5356260 Apparatus for maintaining attitude of bucket carried by loading/unloading vehicle
10/18/1994US5356259 Apparatus for controlling hydraulic cylinders of a power shovel
10/18/1994US5355597 Device for digging a trench
10/11/1994US5353531 Ditch digging apparatus and method
10/05/1994EP0618423A1 Landmine-clearing vehicle
10/05/1994EP0618333A1 Device for fixing a grab bucket to a shovel
09/1994
09/29/1994WO1994021884A1 Clamshell grab for drilling cylindrical holes
09/29/1994WO1994021864A1 Process and device for precisely maintaining the vertical excavation direction of a subterranean curtain
09/29/1994DE4309718A1 Demolition arm
09/27/1994US5350250 Quick coupling of a front work attachment on excavators
09/27/1994US5349766 Boom support pendant pin retainer
09/27/1994US5349765 Excavator for constructing underground continuous wall and construction method using the excavator
09/22/1994DE4308579A1 Support unit with attachment adjustable mounting
09/21/1994EP0616084A1 Self-locking quick coupling for fitting buckets or the like to earth-movers
09/21/1994EP0616083A1 Method for dredging using a dredger, and a bucket dredger and scoop element therefor
09/21/1994EP0616082A1 Bucket dredger with spill collection means
09/21/1994EP0615934A1 Excavator
09/21/1994EP0615583A1 Energy recovering device
09/21/1994EP0486491B1 Automatic excavation control system
09/21/1994EP0447422B1 A linkage system for loading machines
09/21/1994EP0362394B1 Bucket posture retainer for cargo handling vehicles
09/14/1994EP0615023A1 Device for rotably assembling an arm or similar to two branches of a fork formed element
09/14/1994CN2177048Y Mine car without residue
09/13/1994US5345702 Removable pipe arch for dragline buckets
09/07/1994EP0613983A1 Suction dredge
09/07/1994EP0613982A1 Materials breaking apparatus
09/06/1994US5344532 Ultrasonic energy producing device
09/06/1994US5343960 Caterpillar track attachment
09/06/1994US5343959 Dozer blade, face plate, and edge plate arrangement
09/06/1994US5343641 Spreader bar for strip mine rigging apparatus
09/01/1994WO1994019547A1 Method and apparatus for in situ installation of underground containment barriers under contaminated lands
09/01/1994WO1994019272A1 Excavating equipment
09/01/1994CA2155312A1 Excavating equipment
08/1994
08/31/1994EP0612916A2 Apparatus for controlling output from engine on crawler type tractor
08/24/1994CN2175260Y Hydraulic device for changing torque
08/17/1994CN2174502Y Submersible dredger
08/16/1994US5337841 Hammer type soil excavating machine
08/16/1994US5337834 Disk excavating and grading attachment
08/10/1994EP0609445A1 Method of selecting automatic operation mode of working machine
08/10/1994EP0609248A1 Power bucket
08/10/1994EP0609216A1 Hood support assembly for an earth working machine.
08/03/1994EP0609176A1 Coupling device for coupling an implement to a back-hoe arm
08/03/1994EP0608641A1 Breaking equipment
08/03/1994CN2173279Y Bulldozing device for small tractor
08/02/1994US5333697 Flip block assembly for changing dozer blade pitch
08/02/1994US5333695 Quick change device
08/02/1994US5333533 Method and apparatus for controlling an implement
08/02/1994US5333400 Coupling of drive systems to an accessory or an excavator of the like
08/02/1994US5333399 Fastening of the buckets and possibly also the skim cutters on cutting wheels
08/02/1994CA1331091C Shovel, in particular a leveling shovel
07/1994
07/27/1994EP0607483A1 Working machine for hydraulic excavator
07/27/1994EP0607200A1 A driving machine with an articulated boom.