Patents
Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683)
10/1986
10/21/1986US4618006 Ripper implement
10/21/1986US4618005 Orientable ripper
10/14/1986US4616957 Pipeline padding machine
10/14/1986US4616720 Divided-bucket type rotary excavator
10/14/1986CA1212553A1 Process for bringing ashore the ends of underwater cables at arrival landing points
10/08/1986EP0197016A1 Method and apparatus for steering a boat, for instance when laying hoses under water
10/07/1986CA1212249A1 Trench backfill device
10/01/1986EP0112877B1 Underwater trenching machine
09/1986
09/30/1986US4614239 Driller for use in rice field
09/30/1986CA1211945A1 Plough assembly
09/23/1986US4612715 For removing dirt and debris to shape a ditch
09/16/1986CA1211320A1 Method for coating welded pipe joints with weighting material
09/09/1986US4610567 Trench compaction device
08/1986
08/27/1986CN85204487U Electric cable-winding and unwinding device
08/26/1986US4607441 Stone digging attachment for front end loader attachment of a tractor
08/19/1986US4606693 Rigged truck, in particular for ditch clearing
08/05/1986US4604000 Method for removing sludge or mud from the bottom of a water area
07/1986
07/30/1986EP0188487A1 Large cross-section sunken conduit.
07/16/1986CN85105740A General machine for digging slopy holes in the soil
07/02/1986EP0185747A1 Underwater trenching
07/01/1986US4597693 Method and apparatus for installing highway drainage mat
06/1986
06/25/1986EP0185422A1 Method of operating a ground engaging implement
06/25/1986EP0185077A1 Rock ditcher
06/24/1986US4596493 Apparatus and method for the performance of work on submerged articles
06/24/1986US4596492 Process for bringing ashore the ends of underwater cables at arrival landing points
06/17/1986US4595240 Combined bucket and frozen soil scarifier
06/10/1986US4593766 Strafing pit conditioning apparatus with magnetic sweeper
06/10/1986CN85105761A River's dredger with autogenous energy resources
06/03/1986US4592155 Dredger with transport basin having loading and unloading mechanism
05/1986
05/13/1986US4588329 Propulsion method and apparatus for advancing a marine pipeline excavation shield
05/13/1986US4588034 Vibratory plow blade
05/10/1986CN85105741A Cavity digger
05/09/1986WO1986002679A1 Method for breaking down ooze in a harbour basin
05/06/1986US4586850 Underwater trenching system
04/1986
04/30/1986EP0179106A1 A method and a device for establishing mounting holes in the ground, in particular for markers in roads
04/29/1986US4585372 Pipeline plough with lifting assemblies
04/24/1986WO1986002423A1 Pipeline, method and device for construction thereof
04/24/1986WO1986002422A1 Pipeline, method and device for laying it
03/1986
03/11/1986US4575280 Underwater trencher with pipelaying guide
03/04/1986US4573743 Bucketwheel excavator with oscillating nozzles
03/04/1986CA1201287A1 Ditcher head assembly for cleaning ditches
02/1986
02/26/1986EP0044871B1 Method of burying wire, tube or cable under ground
02/25/1986US4571859 Notched ditcher chain tooth
02/18/1986US4570723 Machine for driving holes in the ground
02/18/1986US4570553 Truck with automatic ground softening apparatus
01/1986
01/30/1986WO1986000683A1 Large cross-section sunken conduit
01/30/1986WO1986000656A1 Underwater trenching
01/16/1986WO1986000357A1 Pneumatic reversible percussion device
01/16/1986WO1986000356A1 Machine for ploughing trenches and laying cables or wires therein
01/16/1986WO1986000355A1 Rock ditcher
01/15/1986EP0167862A1 Trench cutting attachment for hydraulic excavators
01/14/1986US4563826 Apparatus for removing ballast from beneath a railroad track
01/08/1986EP0167090A2 Cutting wheel apparatus for excavating cut-off trenches
01/07/1986US4562974 Rock breaking apparatus
12/1985
12/18/1985EP0164366A1 A material working machine.
12/11/1985EP0164202A1 Marine pipeline trenching plough
12/10/1985CA1197864A1 Ditcher method and apparatus
12/04/1985EP0162981A1 Divided-bucket type rotary excavator
11/1985
11/27/1985EP0162731A1 Process for the preparation of sports grounds, device for carrying out this process and sports grounds obtained thereby
11/27/1985EP0162729A2 Rotary rock and trench-cutting saw
11/27/1985EP0162623A1 Sand-slitting and pipe-laying apparatus
11/07/1985WO1985004918A1 A method and a device for establishing mounting holes in the ground, in particular for markers in roads
11/05/1985CA1196185A1 Ditching apparatus with improved ditching blade
10/1985
10/29/1985CA1195842A1 Modular impact ripper assembly
10/22/1985US4548528 Trench shoring apparatus
10/10/1985WO1985004439A1 Method and apparatus for moving a vehicle on loose soil
10/09/1985EP0157337A2 Soil loosening implement
10/09/1985EP0156954A1 Supporting and depth adjusting device for attachments which are mounted to the boom of excavators, earth moving vehicles, front loaders or the like
10/08/1985US4545139 Under ice pipelay apparatus and method
09/1985
09/26/1985WO1985004210A1 Casting of structural walls
09/24/1985US4542940 Method and apparatus for cutting a trench through rock-like material
09/12/1985WO1985003963A1 Reversible pneumatic impacting device for forming wells in the soil
09/10/1985US4540327 Apparatus for feeding bulk material, such as sand
09/10/1985US4539765 Trench backfill device
09/03/1985US4538937 Marine continuous pipe laying system
08/1985
08/27/1985US4537531 Tile layer
08/27/1985US4537530 Marine cable burying method and device therefor
08/20/1985US4535555 Trencher with plural digging wheels having adjustable inclination
07/1985
07/16/1985US4529568 Modified polyurethane
07/16/1985US4529041 Soil scraper and leveler
07/03/1985EP0147095A1 Improvements in pipe laying and replacement
06/1985
06/26/1985EP0145713A1 Apparatus and method for performing work at sea
06/19/1985EP0145565A1 Process and apparatus for the automatic guiding of soil-shifting machines, particularly of a machine for laying draining elements
06/12/1985EP0144164A1 A method and device for insulation of the ground
06/12/1985EP0144099A1 Pipeline plough
06/06/1985WO1985002427A1 A material working machine
06/04/1985CA1188112A1 Method and means for protecting buried cable from rodent damage
05/1985
05/21/1985US4518437 Method and apparatus for cleaning a water tank
05/21/1985US4517755 For a material clearing apparatus
05/21/1985CA1187297A1 Plough
05/21/1985CA1187296A1 Device for laying underground or digging up subsea conduits
05/14/1985US4516880 Underwater trenching apparatus
05/14/1985US4516338 Gimbal mounted on frame with heavy metal plate sides
05/07/1985CA1186703A1 Trench digger
05/02/1985EP0139100A1 Steel sheet pile, sheet pile assembly thereof and the method of constructing the assembly
04/1985
04/30/1985US4513521 Tillage tool for forming an underground water retention tunnel
04/30/1985CA1186349A1 Peat machine
04/16/1985US4510705 Water-bottom rubbles leveling apparatus
03/1985
03/26/1985US4506741 Levee gate cutter
03/26/1985US4506740 Vibrating earth ripping apparatus
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