Patents
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
03/1990
03/08/1990WO1990002257A1 Engine output controller in a caterpillar vehicle
03/08/1990WO1990002230A1 An implement positioning control system for construction machines
03/07/1990EP0356876A2 Device for attaching a loading device to a vehicle
03/07/1990EP0356738A1 A tiltable bucket assembly
03/07/1990EP0356495A1 Automatic implement position control system
03/07/1990CN2054049U Waterpower device for scooping out pond
03/06/1990US4906161 Tiltable bucket assembly
03/06/1990US4905386 Process for unearthing hazardous pipeline
03/01/1990DE3829481A1 Loading shovel, for example for a selective-cut heading machine
02/1990
02/27/1990US4904151 Loader lift arm structure
02/27/1990US4904149 Swing mechanism for an earth-moving apparatus
02/27/1990US4904119 Process for placing a piling in the ground, a drilling machine and an arrangement for implementing this process
02/27/1990US4903780 Mobile, self-propelled crushing machine
02/27/1990US4903419 Method of and apparatus for dredging sludge in high density
02/27/1990US4903408 Steel plate cutter
02/27/1990CA1266280A1 Cutting wheel arrangement for suction dredge
02/27/1990CA1266252A1 Extensible apparatus
02/22/1990WO1990001586A1 Method and apparatus for controlling working units of power shovel
02/22/1990WO1990001585A1 Controllable locking apparatus for implement carrying work vehicle
02/20/1990CA1266043A1 Auger drilling system
02/15/1990DE3827620A1 Sensor-controlled tracking device, especially for the levelling of ground surfaces
02/15/1990DE3827619A1 Sensor-controlled tracking device, especially for the levelling of ground surfaces
02/15/1990DE3827618A1 Sensor-controlled tracking device
02/15/1990DE3827617A1 Sensor-controlled tracking device
02/14/1990EP0354675A1 Apparatus for connecting a towed implement to a tractor
02/07/1990EP0353454A1 Quick mount particularly for fixing buckets to earth-moving machines
02/07/1990EP0262141B1 Bulldozer blade mounting and stabilizing arrangement
02/06/1990US4898247 Earth scraper attachment for a tractor or the like
02/06/1990US4897921 Metal cutting shear with changeable multiple cutting edge portions
02/06/1990CA1265509A1 Earth auger
02/06/1990CA1265338A1 Mechanical digger toy
02/05/1990EP0346366A4 Chain digger attachment.
02/01/1990DE3825338A1 Cutting chain for a trench cutter or the like
01/1990
01/31/1990EP0352654A2 Electrically controlled auxiliary hydraulic system for a skid steer loader
01/30/1990US4897013 Electrically operated material handling attachment for a garden tractor or the like
01/30/1990US4896445 Method for reducing costs and environmental impact of dredging
01/30/1990US4896444 Excavation bucket
01/30/1990US4896443 Ditch forming apparatus
01/30/1990US4896442 Trencher apparatus
01/25/1990WO1990000650A1 An arrangement in implement holders for assemblies which include a side-dumping excavating and loading bucket
01/25/1990DE3922870A1 Device for mounting a shovel bucket by means of the shovel boom
01/23/1990US4895477 Scraping device for making a subgrade
01/23/1990US4895476 Brushing device and method
01/23/1990CA1264701A1 Tunnelling apparatus
01/16/1990US4893683 Dozer blade mounting assembly
01/16/1990US4893464 Offset attachment sidebar chain
01/11/1990DE3822172A1 Method of protecting a hydraulic circuit from overload
01/10/1990EP0349971A1 Boom assembly for a loader
01/10/1990CN1006405B Digger tooth arrangement
01/09/1990US4892359 Bucket system with percussive penetration member
01/09/1990US4892358 Bucket system with percussive penetration member
01/09/1990US4892155 Leveling attachment for a skid-steer vehicle
01/09/1990US4892154 Ground-working apparatus with rotary tiller
01/04/1990DE3838229A1 Working vehicle with an attachment which has a grab shovel
01/04/1990DE3822235A1 Bucket-wheel body
01/04/1990DE3822145A1 Front loader
01/03/1990EP0349132A1 Method for automatic depth control for earth moving and grading
01/02/1990US4890974 Easy connection of dipper stick to tool of an earth working machine
01/02/1990US4890798 Structure crushing equipment
01/02/1990US4890719 Excavator for bucket elevator type continuous unloader
01/02/1990US4890400 Bucket attachment for tractor blade
01/02/1990US4890399 Rider type trenching machine
12/1989
12/27/1989EP0347498A1 An Attachment for a vehicle
12/26/1989US4889466 Control device for a power shovel
12/26/1989US4889391 Hand-held suction dredge and metal detector
12/26/1989US4888890 Laser control of excavating machine digging depth
12/20/1989EP0347371A1 Crushing tongs for demolishing building structures, especially reinforced-concrete walls
12/20/1989EP0346366A1 Chain digger attachment
12/19/1989US4887939 Extension arm assembly for a tractor loader
12/19/1989US4887938 Controllable locking apparatus for implement carrying work vehicle
12/19/1989US4887372 Shallow angle furrow refurbishing method and apparatus
12/19/1989US4887371 Dredges
12/14/1989WO1989012146A1 Wear strips
12/14/1989WO1989012145A1 Stone tongs for excavators
12/14/1989WO1989011910A1 Concrete crusher
12/14/1989DE3819569A1 Excavating unit
12/13/1989EP0346044A1 Method for automatic depth control for earth moving and grading
12/13/1989EP0346043A1 Method for automatic depth control for earth moving and grading
12/13/1989EP0345650A2 Anchor hole drilling rig
12/13/1989EP0345640A1 Self-levelling device for shovel loaders
12/12/1989US4886124 Soil grading apparatus with sifting and transporting capability
12/06/1989EP0345137A1 Earth-moving machine for operating earth-moving tools, presenting a shovel arm and provided with a quick-exchange device for the tools
12/06/1989EP0344420A1 Hydraulic circuit for power shovel
12/06/1989EP0344195A1 A quick coupling means for a working implement of an excavating machine.
12/06/1989EP0344167A1 Corner guard system having a replaceable corner tooth
12/06/1989EP0230072B1 Apparatus and method for brushing
12/06/1989CN2048875U Multicutter reciprocating land leveller
12/05/1989US4884940 Loader bucket transport link
12/05/1989US4884939 Self-contained laser-activated depth sensor for excavator
12/05/1989US4884641 Backhoe hammer
12/05/1989CA1263629A1 Tractor frame for tractor-mounted implement
11/1989
11/30/1989WO1989011568A1 Hammer-swinging mechanism
11/30/1989DE3900218C1 Height sensor device for a control circuit for controlling the height of a blade
11/29/1989EP0343191A1 Positive keeper means for pins of earthworking tips.
11/28/1989US4883134 Milling machine for cutting trenches
11/28/1989US4882859 Excavating bucket having scoops
11/23/1989EP0342189A1 A grader for use with a tractor
11/23/1989EP0215802B1 A ripping bucket arrangement
11/21/1989US4881867 Excavator attachment
11/21/1989US4881419 Fluid-power bearing actuator