Patents
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
06/1983
06/21/1983US4389071 Enhancing liquid jet erosion
06/21/1983US4388769 Earth moving scraper
06/14/1983US4388038 Automatic locking pin retraction mechanism
06/14/1983US4387929 Milling roller mounting support on milling machines for milling road surfaces
06/14/1983US4387519 Method for controlling the position of the suction head of a dredge in relation to the bottom
06/14/1983US4387518 Separable liquid flow screening means for excluding oversized, slender objects carried by a liquid, and dredge means including same
06/14/1983CA1147977A1 Building construction system, component parts and method for assembling same
06/14/1983CA1147953A2 Swing over snow wing
06/14/1983CA1147952A1 Swing over snow wing
06/09/1983WO1983001973A1 A device in a bucket-provided loading machine particularly a so-called wheel loader
06/08/1983EP0080802A1 A machine for cutting a trench in rock
06/08/1983EP0080670A1 Rotation device for suspended loads
06/07/1983US4386473 Recovery of sediments from the bottom of the sea
06/07/1983CA1147759A1 Suction dredger with suction tube
06/07/1983CA1147552A1 Pivotally mounted bulldozer teeth assembly
06/01/1983EP0079888A1 Dirt road smoothing apparatus
05/1983
05/31/1983CA1147354A1 Pneumatic-hydraulic pump dredge
05/24/1983US4384620 Multipurpose-type blade device for earth moving machine
05/24/1983CA1146744A1 Ground-working implement
05/18/1983EP0079103A1 Dredging apparatus
05/18/1983EP0078827A1 Arrangement for equipment mounted on excavating machines and similar machines
05/17/1983US4383793 Tractor implement mount
05/17/1983US4383381 Dozer blade mounting arrangement
05/17/1983US4383380 Earth moving scraper
05/17/1983CA1146447A1 Hydraulic control circuit system
05/11/1983EP0078563A1 Method for suctioning submerged bottom material and a system for carrying out said method
05/10/1983US4382625 Grapple shear
05/10/1983US4382361 Ocean floor dredge system having a pneumohydraulic means suitable for providing tripping and heave compensation modes
05/10/1983CA1146180A1 Suction dredger installation
05/10/1983CA1145934A1 Multipurpose-type blade device for earth moving machine
05/04/1983EP0078080A1 A method and apparatus for dredging rock
05/03/1983US4381872 Remote controlled clamshell bucket apparatus and method of using same
05/03/1983CA1145721A1 Asymmetric backhoe
04/1983
04/28/1983WO1983001473A1 Releasable bucket and other tool connection for backhoe
04/27/1983EP0077684A2 Earthmoving machine
04/26/1983US4381167 Excavator bucket linkage
04/26/1983US4381161 Slurry recovery from a circular sump
04/25/1983EP0058165A4 Load skidding vehicle.
04/20/1983EP0077308A2 Vehicle for loading, excavating, transportation over short distances and for unloading materials at variable heights
04/20/1983EP0022853B1 Two way side dump bucket attachment for front end loader
04/18/1983EP0047245A4 Swing motor mounting arragement.
04/12/1983US4379673 Arrangement for attaching working implements to vehicle
04/05/1983CA1144210A1 Compact resonance drive for earth-working equipment
04/05/1983CA1144193A1 Tool mounting
04/05/1983CA1144190A1 Method for continuously excavating ground and conveying excavated earth in the vertical direction and an apparatus for carrying out said method
03/1983
03/30/1983EP0075482A2 Articulated earth-working vehicle
03/30/1983EP0075358A1 Method for sucking up ground or sludge by means of a suction hopper dredge as well as a suction dredge for applying the method
03/29/1983US4378193 Mobile shovel excavator
03/23/1983EP0074832A2 Mechanical digger
03/22/1983US4377043 Semi-automatic hydraulic excavator
03/17/1983WO1983000891A1 Improvements in dredges
03/17/1983WO1983000850A1 Ice-breaker vessel
03/15/1983US4376612 Earthworking machine of the loader type
03/15/1983US4376340 Material handling and shearing attachment for a backhoe
03/09/1983EP0073598A1 Hinge mechanisms
03/01/1983US4375345 Clamping arm assembly for a backhoe
03/01/1983US4375344 Bucket leveling mechanism
03/01/1983CA1142188A1 Excavator drive mechanism for tunnel boring machine
03/01/1983CA1142187A1 Dredge head with mechanical and pumping action
02/1983
02/23/1983EP0072567A2 Boundary plane warning system
02/23/1983EP0072539A2 Hydraulic circuit of hydraulic power shovel
02/23/1983EP0072392A1 Plow device
02/22/1983CA1141785A2 Ocean mining system
02/22/1983CA1141784A2 Apparatus for recovery of sediments from the bottom of the sea
02/22/1983CA1141537A1 Blade positioning apparatus
02/16/1983EP0071677A1 Trench cutter
02/15/1983US4374420 Method of accurately dredging a desired profile contour
02/15/1983US4374024 Underwater suction device for irradiated materials
02/15/1983US4373853 Log handling machine
02/15/1983US4373852 Quick coupling and release mechanism for buckets
02/15/1983US4373851 Bulldozer and backhoe lock device
02/15/1983US4373278 Single line deep-sea bucket and release
02/15/1983US4373277 Cutter extension cone
02/15/1983US4373276 Device for conveying a slurry, such as sand or gravel or the like, lying under water
02/15/1983CA1141400A1 Digging wheel for a suction dredger vessel
02/15/1983CA1141266A1 Fluid motor control circuit with fast-acting quick-drop valve
02/09/1983EP0071590A1 Ground-levelling unit
02/09/1983EP0071384A2 Mine-field clearing apparatus mountable on a vehicle
02/09/1983EP0070856A1 Rock-scaling device
02/08/1983US4372729 Tilt control
02/08/1983US4372063 Brush clearing apparatus for a bulldozer blade
02/01/1983US4371307 Hydraulic bucket cleaner
02/01/1983CA1140424A1 Means for hydraulic self-leveling of a loader bucket
01/1983
01/25/1983US4370713 Anti-tightline control system and method for dragline type equipment
01/25/1983US4370090 Boom lock
01/25/1983US4369847 Blade assembly
01/25/1983US4369590 Rear mounted scraper for vehicles
01/25/1983CA1140166A1 Cutter
01/20/1983WO1983000174A1 Grading machine
01/19/1983EP0070005A1 Hydraulic fluid circuit of hydraulic shovel
01/19/1983EP0069737A1 Anti-static device for ball valves
01/18/1983US4368923 Nodule collector
01/18/1983US4368873 Vehicular mounted pipe presser
01/11/1983US4368521 Method and apparatus for dragline tightline protection
01/11/1983US4367673 System and method for controlling the elevation of a boom hoist device
01/11/1983US4367624 Control system for hydraulic actuator
01/11/1983US4367601 Separable means for excluding oversized slender objects
01/04/1983US4366635 Pivoting ejector for elevator scraper
01/04/1983CA1138828A1 Demountable interconnection
01/04/1983CA1138827A1 Articulation of an excavator-scoop