Patents
Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683)
03/1985
03/26/1985US4506464 Hydraulic breakaway system for mobile cutting apparatus
03/20/1985EP0134312A1 Method and device for removing material lying beneath the water surface
03/12/1985US4503630 Ditch digging machine
02/1985
02/26/1985US4501446 Removal of fine-grained sediments from water bodies
02/20/1985EP0133324A2 Rigged truck, in particular for ditch clearing
02/19/1985CA1182845A1 Installation for two or more step excavating in a discontinuous open cut operation
02/12/1985US4498813 Underground cable installing apparatus and method utilizing a fluid jet assisted, vibrating blade arrangement
01/1985
01/29/1985CA1181634A2 Agronomic process
01/08/1985US4492492 Guiding method for cable burying device and a device therefor
01/01/1985US4491368 Method for dredging rock with a pick and water jet combination
12/1984
12/25/1984US4489818 For strip-mining operations
12/20/1984WO1984004938A1 Apparatus and method for performing work at sea
12/19/1984EP0128173A1 Device to break open a cultivated soil.
12/19/1984EP0128137A1 Modular impact ripper assembly
12/18/1984US4488836 Method and apparatus for embedding a pipe in a trench in weak ground
12/11/1984CA1179182A2 Agronomic implement
12/05/1984EP0127549A2 Method of constructing sports grounds, and apparatus for carrrying out this method
12/04/1984US4485570 Apparatus for mounting a drilling machine on an excavator bucket
12/04/1984CA1178980A1 Method and apparatus for dredging rock
11/1984
11/22/1984WO1984004554A1 Device for digging wells in the soil
11/20/1984US4483084 Trencher
11/07/1984EP0124499A1 Method and apparatus for installing highway drainage mat
11/07/1984EP0094403A4 Rock breaking apparatus.
11/06/1984US4480569 Container for ground material removed by a ground working device from the bottom of a watercourse
10/1984
10/31/1984EP0123468A1 Trenching apparatus
10/30/1984US4479741 Device for laying underground or digging up subsea conduits
10/23/1984US4478289 Side mounted soil ripping mechanism
10/09/1984US4475602 Roller equipped earthworking member
10/02/1984CA1175244A1 Soil moving devices
09/1984
09/26/1984EP0119653A1 Method for removing sludge or mud from the bottom of a water area
09/26/1984EP0023919B1 A grubber implement
09/25/1984US4473256 Chisel barge with shock absorbing system for mast
09/19/1984EP0119129A1 Ditch cutting and cleaning apparatus
09/18/1984US4472089 Channel construction machinery having a levelling and material lining application attachment
09/11/1984US4470720 Underwater trenching & pipelaying apparatus
09/04/1984US4468872 Peat machine
08/1984
08/29/1984EP0117038A1 Plough assembly
08/28/1984US4467876 Ripper tooth means
08/22/1984EP0116410A1 Trench backfill device
08/21/1984US4466491 Apparatus for removing rocks and objects
08/15/1984EP0115882A1 Machine for laying a flexible tube or cable into the ground
08/07/1984US4463509 Vibratory plow assembly
08/07/1984US4463508 Backfill compactor
08/01/1984EP0114584A2 Chain cutter excavator
07/1984
07/31/1984US4462715 System for the one-step dewatering of a trench and the construction of a pipeline bed
07/24/1984US4461598 Machine for installing drip irrigation conduit
07/24/1984CA1171274A1 Device at combined bucket and frozen soil scarifier
07/17/1984US4459767 Ditcher head assembly for cleaning ditches
07/11/1984EP0112877A1 Underwater trenching machine.
07/10/1984CA1170467A1 Slurry trench method and apparatus for constructing underground walls
07/03/1984CA1170099A1 Narrow-base terracing plow
07/03/1984CA1170040A1 Ditching method and device
06/1984
06/26/1984US4455770 Trencher power control system
06/21/1984WO1984002251A1 Device to break open a cultivated soil
06/19/1984US4454921 Replaceable blade for cable laying plow
06/12/1984US4453772 Modular impact ripper assembly
06/12/1984US4453600 Signal shank parallel ripper apparatus
05/1984
05/29/1984CA1168075A1 Agronomic process and apparatus for use therein
05/22/1984US4449591 Agricultural clean-out drag
05/15/1984US4448567 Method for installing lines, pipes or cables underground
05/15/1984CA1167311A1 Ground preparation tool for reforestation
05/08/1984US4447173 Apparatus for burying drip irrigation tubing
05/08/1984US4446636 Oceanic mining system
04/1984
04/24/1984US4444434 Continuous miner
04/24/1984CA1166275A1 Bucket wheel for a dredge or the like
04/18/1984EP0105570A1 Method and apparatus for removing mud from below an underwater construction
04/12/1984WO1984001397A1 Modular impact ripper assembly
04/03/1984US4440240 Method of making holes in the soil and apparatus for performing this method
03/1984
03/27/1984US4438576 Device for ditching a drain in soil
03/27/1984US4438575 Continuous excavating apparatus
03/20/1984US4437789 Method and means for protecting buried cable from rodent damage
03/13/1984US4436476 Rod device for use as an arm of an excavator
02/1984
02/21/1984US4432672 Canal building apparatus
02/21/1984US4432584 Trenching machine for cutting preferably frozen ground
02/14/1984US4431061 For use with conventional farm tractors for precutting old levees
02/14/1984US4430812 Endless belt dredger
02/07/1984US4430022 Underground cable installing apparatus and method utilizing a multi-positionable plow blade
02/07/1984US4429477 Portable ditcher and excavating elements therefor
02/01/1984EP0099489A1 Method of and machine for cleaning a water basin
01/1984
01/31/1984US4428132 Trenching plow with plow carriage on curved supporting track
01/19/1984WO1984000183A1 Underwater trenching machine
01/18/1984EP0098269A1 Vibrator unit preferably for construction works
01/18/1984EP0026182B1 Device for burying a line in the sea bed
12/1983
12/27/1983US4422512 Narrow-base terracing plow
11/1983
11/23/1983EP0094403A1 Rock breaking apparatus.
11/09/1983EP0016811B1 Tool driving apparatus
11/08/1983US4413433 Apparatus for extracting muddy materials and feeding them to a treatment station
11/08/1983CA1156689A1 Submarine device for collecting modules on the seabed and for bringing them to the surface
11/01/1983CA1156283A1 Boot seal
10/1983
10/26/1983EP0092201A1 Mobile soil loosening implement
10/26/1983EP0092128A1 Combined road milling and asphalt and concrete saw for a hydraulic excavator, backhoe loader and front loader
10/25/1983US4411081 Trench compactor having a vibratory sheepsfoot assembly
10/25/1983CA1155878A1 Trencher digging chain sprocket drive
10/18/1983US4410297 Marine continuous pipe laying system
10/18/1983US4409912 Agronomic implement
10/18/1983US4409747 Digging apparatus
10/11/1983US4408405 Underwater excavator
09/1983
09/27/1983CA1154466A1 Trenching machine for cutting preferably frozen ground
09/14/1983EP0088190A1 Pipe or cable burying plough
09/06/1983CA1153201A1 Side shift plow assembly
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