| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
|---|
| 10/28/1980 | US4230435 Backhoe finishing tool |
| 10/28/1980 | US4230372 Dual rock cutter wheel trencher |
| 10/28/1980 | US4230369 Pavement planing method and apparatus |
| 10/28/1980 | CA1088304A1 Power dozer |
| 10/21/1980 | US4229046 Tool driving apparatus and method |
| 10/21/1980 | US4229045 Resonant tool driving apparatus with tool stop |
| 10/21/1980 | US4229044 Clevis-mounted impact ripper |
| 10/16/1980 | WO1980002169A1 Arrangement for burying a line in the sea bed |
| 10/15/1980 | EP0016811A1 Tool driving apparatus. |
| 10/14/1980 | US4227578 Isolation frame |
| 09/23/1980 | US4223462 Digging chain support for excavation |
| 09/23/1980 | CA1086081A1 Vibratory cable plow assembly |
| 09/09/1980 | US4221505 Sub-surface irrigation channel |
| 09/09/1980 | US4221157 Pneumatically operated percussion boring apparatus |
| 09/09/1980 | CA1085175A1 Dynamic plow assembly and method of operating same |
| 09/02/1980 | US4219947 Plow or digging machine automatic blade adjusting and locking system |
| 08/26/1980 | CA1084340A1 Plant for blasting of objects such as rock, concrete, and the like |
| 08/21/1980 | WO1980001638A1 A grubber implement |
| 08/21/1980 | WO1980001637A1 Impact ripper |
| 08/19/1980 | CA1083837A1 Sea sled tow line vector system |
| 08/12/1980 | US4217001 Universal digging boom |
| 08/12/1980 | CA1083365A1 Sea sled for entrenching pipe |
| 08/07/1980 | WO1980001530A1 Impact tip for impact rock breaker |
| 08/06/1980 | EP0014010A1 A device for planing a body of ground material |
| 07/29/1980 | US4214387 Trenching apparatus and method |
| 07/15/1980 | US4212565 Method and apparatus for forming a continuous row of cast-in-place piles to form a wall |
| 07/10/1980 | WO1980001394A1 Roller cutter |
| 06/11/1980 | EP0011766A1 Excavator with position indication of its working tool |
| 05/27/1980 | US4204578 Ground-engaging implement assembly |
| 05/27/1980 | CA1078269A1 Reversible pneumatic percussive device |
| 05/14/1980 | EP0010915A1 Trenching plough |
| 05/13/1980 | US4202119 Waterway cleaner with endless bucket conveyor |
| 05/13/1980 | CA1077531A1 Independent unit for the collection and upward transfer of nodules which rest on an underwater bed |
| 04/30/1980 | EP0010105A1 Pavement planing machine. |
| 04/29/1980 | US4200410 Cable laying device |
| 04/15/1980 | US4197918 Subterranean plow blade |
| 04/15/1980 | CA1075479A1 Plow or digging machine automatic blade adjusting and locking system |
| 04/08/1980 | US4197036 Apparatus for forming narrow drainage trenches |
| 04/08/1980 | US4196531 Independent unit for the collection and upward transfer of nodules which rest on an underwater bed |
| 04/02/1980 | EP0009123A1 Canal construction machine |
| 04/01/1980 | US4195427 Chain trencher |
| 04/01/1980 | US4195426 Extracting ores from the sea bottom |
| 04/01/1980 | CA1074817A1 Self-propelled dredging apparatus |
| 04/01/1980 | CA1074582A1 Drain line and method of installing |
| 03/25/1980 | US4194311 Grave digging apparatus |
| 03/25/1980 | CA1074135A1 Cable plow assembly |
| 03/18/1980 | US4193217 Pivotable bucket with a rotatable earth moving mechanism |
| 03/18/1980 | CA1073760A1 Pneumatic apparatus of the percussive type |
| 03/11/1980 | CA1073266A1 Method and a device for blasting |
| 03/05/1980 | EP0008534A1 Cutter head for a suction dredger |
| 03/04/1980 | US4191479 Sludge agitating apparatus |
| 02/26/1980 | US4190382 Separable trenching apparatus |
| 02/20/1980 | EP0008231A1 Apparatus for excavating trenches |
| 02/19/1980 | US4189253 Process and apparatus for maintaining a desired depth of a waterway |
| 01/09/1980 | EP0006812A1 Method and apparatus for laying submerged pipes |
| 01/01/1980 | US4181180 Soil cultivating machines |
| 12/25/1979 | US4179829 Trenching machine |
| 12/25/1979 | CA1068731A Bucket-wheel excavator with hydraulic bucket-wheel drive |
| 12/18/1979 | US4179227 Dynamic plow assembly and method of operating same |
| 12/18/1979 | CA1068160A1 Closed initiator system including explosive energy-initiatable blasting caps, and method |
| 12/13/1979 | WO1979001066A1 Ripping tool driving apparatus |
| 12/12/1979 | EP0005982A2 Machine for filling a pre-cut slot in the ground |
| 11/20/1979 | US4174757 Material ripping vehicle |
| 11/13/1979 | US4173836 Condition responsive trench excavator |
| 10/23/1979 | US4171582 Excavator |
| 10/16/1979 | CA1064529A1 Ditch digger |
| 10/16/1979 | CA1064272A1 Passive seabed protection against ice scour |
| 10/03/1979 | EP0004378A1 Apparatus for the subaqueous entrenching of pipes |
| 10/02/1979 | CA1063447A1 Reversible air-operated apparatus of the percussive type for driving holes in ground by compacting same |
| 09/04/1979 | CA1061810A1 Subsea excavation system |
| 08/28/1979 | US4165571 Sea sled with jet pump for underwater trenching and slurry removal |
| 08/23/1979 | WO1979000563A1 Pavement planing method and apparatus |
| 08/21/1979 | US4164982 Vibratory cable plow assembly |
| 08/14/1979 | US4164082 Excavator for anchor holes |
| 08/14/1979 | CA1060221A1 Padding machines |
| 07/24/1979 | US4162102 Method and device for loosening stony soil |
| 07/24/1979 | US4162087 Self-propelled translatable working unit for tractor vehicle |
| 07/17/1979 | US4161072 Ditch digger with adjustable side wings |
| 07/11/1979 | EP0002991A1 Method of depositing materials on the bottom of the sea along a given path, apparatus for carrying out this method, vehicles adapted for use in this apparatus and the use of this apparatus |
| 07/03/1979 | US4159668 Method for placing explosives in submerged rock |
| 07/03/1979 | US4159630 Assembly such as for a tile chute tool for use with a ditching or trenching machine |
| 07/03/1979 | US4159585 Rotary trencher and shoe assembly therefor |
| 06/26/1979 | US4159474 Depth indicating means for a tractor supported tool |
| 06/26/1979 | US4159190 Laydown tool for plastic crop-irrigation tubing |
| 06/26/1979 | US4158924 Tooth arrangement for rotary trencher |
| 06/19/1979 | CA1056608A1 Laying tool for laying of submarine cables into a sea-bottom |
| 06/19/1979 | CA1056606A1 Vibratory cable laying plow |
| 06/12/1979 | CA1056193A1 Power shift mechanism for earth working implements |
| 06/12/1979 | CA1056168A1 Plow for use in laying drain-tile |
| 06/12/1979 | CA1056154A1 Cooling system for rock ripper tip |
| 05/29/1979 | CA1055385A Method and tool for applying ties |
| 05/22/1979 | CA1054808A1 Device for the burial of very long flexible elements |
| 05/15/1979 | US4154551 Flow-through swivel pipe joint |
| 05/15/1979 | CA1054443A1 Placement method for q.d. charges using minimum diving time |
| 05/08/1979 | US4152991 Ripping apparatus |
| 05/08/1979 | US4152850 Bucket-wheel trench excavator having a four-element articulated linkage including two pivotably connected hydraulic cylinders |
| 04/24/1979 | US4150502 Method and apparatus for breaking up lumps of stone from a subaqueous soil |
| 04/17/1979 | US4149600 Soil cultivating machines |
| 04/17/1979 | US4149326 Machine for digging a trench beneath a submerged pipeline |
| 04/03/1979 | CA1051678A1 Regeneration of boring sludges_ |