Patents
Patents for E02F 3 - Dredgers; Soil-shifting machines (20,930)
04/1980
04/08/1980CA1075272A1 Tool for earthworking machine
04/08/1980CA1075040A1 Transmission control system
04/08/1980CA1074994A1 Land leveler and growser assembly
04/02/1980EP0009123A1 Canal construction machine
04/01/1980US4195427 Chain trencher
04/01/1980US4195426 Extracting ores from the sea bottom
04/01/1980CA1074740A1 Cross-member assembly
04/01/1980CA1074739A1 Backhoe mounting assembly
04/01/1980CA1074557A1 Plow attachment assembly for a crawler-type tractor
03/1980
03/25/1980US4194574 Draft power sensor and method for improving performance in earthmoving equipment
03/25/1980US4194311 Grave digging apparatus
03/18/1980US4193734 Boom for backhoe with internally disposed hydraulic feed lines
03/18/1980US4193733 Hydraulic excavator machine having self-contained electrohydraulic power units
03/18/1980US4193217 Pivotable bucket with a rotatable earth moving mechanism
03/18/1980CA1073685A1 Dredger chain joint
03/18/1980CA1073667A1 Snow plow
03/05/1980EP0008534A1 Cutter head for a suction dredger
03/04/1980US4191426 Sealing guard for a surface treating machine
03/04/1980CA1073003A1 Wear strips for earthmoving buckets
03/04/1980CA1072920A1 Apparatus for forcibly engaging machine assemblies
02/1980
02/26/1980US4190394 Method for loading and unloading railroad cars
02/26/1980US4189854 Grader blade attachment
02/26/1980CA1072588A1 Rock milling cutters
02/26/1980CA1072499A1 Mounting structure for an earth-working machine
02/26/1980CA1072324A1 Attitude control for implement
02/20/1980EP0008231A1 Apparatus for excavating trenches
02/20/1980EP0007921A1 Under water drum collector with a tower for collecting manganese nodules on the sea bottom
02/19/1980US4189278 Boom prop
02/19/1980US4189253 Process and apparatus for maintaining a desired depth of a waterway
02/19/1980US4189239 Apparatus treating sludge deposits
02/19/1980US4189010 Power angling bulldozer assembly
02/19/1980US4189009 Wheel mounted earth moving scraper with pivot in center of pivot axle
02/19/1980US4188739 Magnetic switch adjusting system
02/19/1980US4188721 Attachment for a back hoe
02/12/1980US4188165 Loaders for use in tunnels
02/12/1980US4187763 Overload relief valve
02/12/1980US4187625 System for excavation at sea through horizontal guiding by means of cables
02/05/1980US4187050 Quick-disconnect mechanical coupling
02/05/1980US4187049 Gathering blade apparatus for assisting in loading the bucket on a front-end loader
02/05/1980CA1071263A1 Excavating bucket and teeth for a backhoe
02/05/1980CA1071152A1 Pivot pin assembly
02/05/1980CA1071151A1 Apparatus for attaching implement to earth moving vehicle
01/1980
01/29/1980US4185945 Cylinder mounting
01/29/1980US4185700 Circle mounting and circle assembly for a motor grader
01/29/1980US4185698 Adjustable auger dozer
01/29/1980US4185404 Nodule dredging bucket
01/23/1980EP0007000A1 Plow device
01/22/1980US4184958 Apparatus for treating sumps
01/22/1980US4184803 Releasable backhoe boom lock
01/22/1980US4184583 Device for use in the emptying of dredging buckets
01/22/1980US4184581 Loading apparatus for mines
01/22/1980CA1070357A1 Rotational grapple
01/15/1980US4183711 Mobile power shovel
01/15/1980US4183586 Apparatus for progessively removing layers of overburden from an inclined side of a cut
01/15/1980US4183551 Differential case and push-frame assembly and a method of making same
01/15/1980US4183158 Conveyor folding and deflector operation for excavating and loading systems
01/09/1980EP0006750A1 A backhoe boom transport locking means and a backhoe comprising such locking means
01/09/1980EP0006588A1 Improvements in or relating to a buckrake
01/08/1980US4182456 Material handling machine
01/01/1980US4180927 Digging bucket cylinder powered ejector system
01/01/1980US4180925 Apparatus with masking means for continuously covering a slot therein
12/1979
12/25/1979US4180292 Rock milling cutter tongue and slot connected
12/25/1979US4179981 Device for sequentially supplying several hydraulic motors
12/25/1979US4179829 Trenching machine
12/25/1979CA1068618A Aerial lift
12/18/1979US4179024 Scraper elevator drive mounting
12/18/1979US4178704 Suction nozzle dredge head
12/13/1979WO1979001075A1 Polyvalent machine for earthwork and maintenance
12/13/1979WO1979001066A1 Ripping tool driving apparatus
12/12/1979EP0005907A1 Channel-type tractor frame
12/11/1979US4177585 Method and apparatus for dredging
12/11/1979CA1067693A1 Scraper blade mounting assembly
12/04/1979US4176477 Compact unit for excavating, compacting and loading
11/1979
11/27/1979US4175907 Shovel linkage
11/27/1979US4175902 Apparatus for loading and unloading railroad cars
11/27/1979US4175900 Plug-in bale mover
11/27/1979US4175625 Articulating grader having structure for raising and lowering mold board without disturbing setting
11/27/1979CA1067033A2 Bucket wheel reclaimer
11/20/1979US4174854 Building and constructional machines or vehicles
11/20/1979US4174761 Running travel maneuvering apparatus for an engineering work vehicle
11/20/1979US4174579 Twin boom dragline
11/20/1979CA1066667A2 Method of loading a haulage vehicle
11/20/1979CA1066647A1 Gondola car loader
11/13/1979US4173836 Condition responsive trench excavator
11/13/1979CA1066335A1 Vacuum switches
11/13/1979CA1066052A1 Device for pumping out sanded in crab pots
11/06/1979US4173258 Laser beam level control with automatic override
11/06/1979CA1065806A2 Clamping devices
11/06/1979CA1065805A1 Clamping devices
11/06/1979CA1065605A1 Work vehicle and method of assembling
10/1979
10/30/1979USRE30128 Conveyor control system for a self-loading scraper
10/30/1979USRE30127 Load ejection improvement for self-loading scrapers
10/30/1979US4172687 Backhoe skip attachment
10/30/1979CA1065299A1 Split drive system for dragline with power interlock
10/23/1979US4171674 Fairing for pipes
10/23/1979US4171582 Excavator
10/23/1979US4171581 Water flow-deflecting shield for dredge suction nozzle
10/16/1979US4171147 Flywheel for a construction machine
10/16/1979US4171054 Work vehicle with hydraulic circuit for swivel motor and work assembly arm motor
10/16/1979US4171023 Triple tractor assembly