Patents
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
11/1990
11/01/1990WO1990012929A1 A device for a sorting shovel
11/01/1990WO1990012928A1 Method and apparatus for the active prevention of sedimentation in harbors and waterways
10/1990
10/31/1990EP0395321A1 Amelioration of soil for tree planting
10/31/1990EP0395305A2 Excavator
10/31/1990EP0394467A1 Operation machine link mechanism
10/31/1990EP0229083B1 The determining of the amount of material delivered each operational cycle of a shovel loader
10/30/1990US4966240 Combination backhoe vehicle and bulldozer apparatus
10/30/1990US4965945 Excavating tooth
10/23/1990US4964779 Vehicle
10/18/1990WO1990012162A1 Apparatus for a machine
10/18/1990WO1990012161A1 Swinging device for excavators and other heavy plant
10/17/1990EP0392972A2 Coupling for an excavator bucket
10/17/1990CN2063956U Universal miniature hydraulic excavator
10/16/1990US4963071 Coupler assembly between a prime mover and a work implement
10/16/1990US4962816 Arrangement for controlling bulldozer blade
10/16/1990US4962597 Implement of an excavating machine
10/14/1990WO1990012163A1 Rotary dipper stick
10/13/1990CA2010736A1 Pivoting device for excavators or similar heavy equipment
10/11/1990DE3911624A1 Tool for digging and undercutting slit trench - has cutting tool mounted on links pivoted to lower end of fixed frame
10/11/1990DE3911571A1 Oberwagen eines baggers mit einem zentralrahmen Superstructure of a baggers with a central frame
10/10/1990EP0391808A1 Telescopic hoisting device for a vehicle, in particular for a loader
10/10/1990EP0391236A2 Driving device for earth-moving machines, in particular for wheel loaders
10/09/1990US4961667 Pivot joint for loader linkages and the like
10/09/1990US4961543 Rotation adjusting apparatus in a crusher
10/03/1990EP0390715A1 Multiple fluidic connection
10/03/1990EP0198838B1 A load carrying and tipping vehicle
10/02/1990US4960359 Demountable swing boom hoist for front end loaders
10/02/1990US4959915 Impact bucket apparatus
10/02/1990CA1274748A1 Balanced hydraulic propulsion system
09/1990
09/26/1990EP0389373A2 Swing reduction gear
09/26/1990EP0389136A1 Float circuit for boom of construction apparatus
09/25/1990US4958981 Attachment connector assembly for hydraulic shovel type excavator
09/25/1990US4958457 Trench digging or root cutting device
09/25/1990US4958449 Apparatus for covering drilling mud liquids in a surface depression
09/25/1990CA1274605A1 Control circuit for positioning an earthmoving blade
09/20/1990WO1990010379A1 Spot mounder method and apparatus
09/18/1990US4957622 Apparatus for removing sediment from ponds
09/18/1990US4957392 Method and apparatus for the active prevention of sedimentation in harbors and waterways
09/18/1990US4957170 Curb and gutter shovel
09/12/1990EP0386904A1 Loader bucket transport link
09/12/1990EP0386264A1 Engine output controller in a caterpillar vehicle
09/12/1990CN1009567B Hydraulic circuit system for use in hydraulically operated vehicles
09/11/1990US4955779 For attaching a tool or an attachment to a machine
09/11/1990US4955664 Vehicle, especially a loader
09/11/1990US4955283 Hydraulic circuit for cylinder
09/11/1990US4955151 In an excavating bucket wheel
09/11/1990CA1273974A1 Corner guard system having a replaceable corner tooth
09/11/1990CA1273965A1 Method and device for drilling a well
09/11/1990CA1273903A1 Hitch
09/07/1990WO1990010756A1 Impact bucket apparatus
09/07/1990WO1990010116A1 Electronic control type hydraulic driving machine
09/07/1990WO1990010115A1 An earthworking apparatus
09/07/1990CA2045458A1 Impact bucket apparatus
09/05/1990EP0287591B1 Boom for a vehicle
09/04/1990US4953625 Adjustable, pivotable blade for bulldozers and the like
08/1990
08/30/1990DE3905463A1 Method and arrangement for constructing two-phase diaphragm walls
08/29/1990EP0384872A1 Exchangeable shear shovel
08/29/1990EP0384737A1 Hydraulic circuit for hydraulic construction and working machine
08/28/1990US4952179 Salt mushroom cutting apparatus
08/28/1990US4952116 Rotary dipper stick
08/28/1990US4951886 Concrete crusher
08/24/1990CA2010823A1 Interchangeable shearing bucket
08/23/1990WO1990009490A1 Connecting pin device for working machine operating links
08/23/1990WO1990009489A1 A caterpillar-driven excavating machine equipped with a separate working tool
08/23/1990DE4008207A1 Retention wall construction system - with binding agents or solids fed into trench after cutting
08/22/1990EP0383276A1 Hydraulic piping structure for a backhoe
08/22/1990EP0382793A1 Concrete crusher.
08/22/1990EP0382726A1 Process and device for dredging silt in ports, waterways and the like.
08/22/1990CN1009263B Controller for wheeled construction machine
08/21/1990US4950127 Rotary dipper stick
08/21/1990US4950125 "True free fall" hydraulic winch system for converting a "backhoe" to a "crane"
08/21/1990US4950102 Wheel compaction unit
08/16/1990EP0382272A1 Loader mounting frame
08/15/1990CN2060455U Amphibious mud and soil feeding and conveying apparatus
08/14/1990US4948328 Quick attach bucket system for backhoes and the like
08/14/1990CA1272698A1 Device for load supporting unit
08/08/1990EP0381555A1 Opening buckets of public works machines
08/08/1990EP0380665A1 Method and apparatus for controlling working units of power shovel
08/07/1990US4946506 Polyethers with addition polymer side chains and alkali or alkaline earth metal nitrite
08/07/1990US4946227 Bucket wheel assembly
08/07/1990US4945778 Fluid-power device with rollers
08/07/1990US4945663 Apparatus and method for forming and compacting planting mounds
08/07/1990US4945662 Backhoeing device
08/07/1990US4945661 Dredging apparatus
08/07/1990CA1272376A1 Improved running gear suspension for articulated construction vehicles
07/1990
07/31/1990US4945221 Apparatus and method for controlling a hydraulic excavator
07/31/1990US4944649 Mechanism for coupling subordinate machine to tractor
07/31/1990US4944628 Quick coupling means for a working implement of an excavating machine
07/31/1990US4944102 High production system bucket
07/28/1990WO1990008856A1 Trench excavating arm propulsion apparatus
07/26/1990WO1990008857A1 Cutting apparatus
07/26/1990WO1990008234A1 A device for detachably coupling an implement to a vehicle
07/26/1990WO1990008233A1 Service machine stopping apparatus for midget rotary power shovel
07/25/1990EP0305658B1 Milling device for slits
07/24/1990US4943186 Device for the displacement of sediment under water and process for the use of such a device
07/24/1990US4943165 Sludge stabilizing method and apparatus
07/24/1990US4942932 Auger drilling system
07/24/1990US4942682 Dredging module for use with conventional back hoe apparatus
07/18/1990EP0378485A1 Device for connecting cutting drums to an apparatus used for digging trenches in the soil
07/18/1990EP0378129A1 Hydraulic system for boom cylinder of working apparatus