| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
|---|
| 03/27/1979 | US4145891 Support element for pipe ditches |
| 03/06/1979 | US4142817 Plow for use in laying drain-tile |
| 02/27/1979 | US4141667 Underwater pipeline laying method and apparatus |
| 02/20/1979 | US4140425 Cable plow assembly |
| 02/20/1979 | US4140186 Heavy-duty ripper for dual traction unit |
| 02/20/1979 | CA1048800A1 Drain digging machine |
| 02/13/1979 | US4138832 Hole filling machine |
| 02/06/1979 | CA1047780A1 Control for cable plows and the like |
| 02/06/1979 | CA1047779A1 Vertical lift and control for plows |
| 01/09/1979 | CA1045819A1 Mounting for securing tools to vehicles |
| 12/19/1978 | US4129992 Laying tool for laying of submarine cables into a sea-bottom |
| 12/19/1978 | CA1044473A1 Method for placement of production casing under obstacle |
| 12/05/1978 | US4127950 Bottom jetting device |
| 12/05/1978 | CA1043580A1 Drainage machine with a breaking up tooth |
| 11/28/1978 | CA1043112A1 Horizontal wellpointing method and apparatus |
| 10/31/1978 | CA1041561A1 Outside supports for excavating wheels |
| 10/31/1978 | CA1041310A1 Sand shield jet sled |
| 10/24/1978 | US4121672 Reversing pneumatic percussive device |
| 10/17/1978 | US4120364 Automatic control device for tractor mounted tools |
| 10/17/1978 | CA1040439A1 Vibratory plow |
| 10/10/1978 | US4119157 Control for cable plows and the like |
| 10/10/1978 | US4119154 Method and apparatus for treating ballast |
| 10/10/1978 | US4119124 Method and tool for applying ties |
| 10/10/1978 | US4118940 Drain line and method of installing |
| 10/03/1978 | US4117890 Adjustable mounting for subterranean tool |
| 10/03/1978 | US4117689 Submarine pipe trenching apparatus |
| 10/03/1978 | CA1039760A1 Mobile underwater device for excavating materials on the sea bed |
| 09/26/1978 | US4116014 Excavating and pipeline installation system |
| 09/19/1978 | US4114391 Tape laying trenching apparatus |
| 09/19/1978 | US4114390 Burying a conduit in the bottom of a body of water |
| 09/12/1978 | US4113315 Combustion apparatus for generating repetitive explosions |
| 09/12/1978 | US4113031 Power shift mechanism for earth working implements |
| 09/12/1978 | US4112695 Sea sled for entrenching pipe |
| 09/05/1978 | US4110920 Slack takeup apparatus for an endless excavating member |
| 08/29/1978 | US4109336 Automated machinery to clean debris from roadside ditches, collect it and then transport the debris to a major collecting area for disposing |
| 08/22/1978 | CA1036812A1 Tractor with ripper attachment having a combined tool bar and counterweight container |
| 08/22/1978 | CA1036811A1 Ripper assembly for tractor drawn scraper |
| 08/15/1978 | US4106335 Sea sled tow line vector system |
| 08/15/1978 | US4106224 Cutting assembly |
| 08/08/1978 | US4104774 Apparatus for applying filter to a drainage tubing |
| 08/01/1978 | US4103501 Device for embedding flexible elements of great length in the ground |
| 08/01/1978 | US4103443 Linkage for an excavating tooth |
| 08/01/1978 | US4103441 Trencher with offset drive wheels |
| 07/25/1978 | US4102412 Apparatus and method for placing explosives in submerged rock |
| 07/25/1978 | US4102403 Apparatus for making a slit trench |
| 07/25/1978 | US4102066 Scarifying apparatus and method for railroad bed ballast removal |
| 07/18/1978 | US4100979 Pneumatic percussion boring device |
| 07/18/1978 | US4100688 Earth working apparatus |
| 07/04/1978 | US4098344 Earthworking implement |
| 07/04/1978 | US4098089 Method of laying subsoil membranes |
| 07/04/1978 | US4098012 Auger-type thin-keeled excavating machine |
| 06/20/1978 | US4095358 Apparatus for high-speed trench digging beside highways |
| 06/13/1978 | US4094152 Apparatus for laying a pipe line |
| 05/30/1978 | US4091629 Marine pipeline installation system |
| 05/09/1978 | US4088368 Method for explosive breaking of hard compact material |
| 05/09/1978 | US4087982 Vibratory plow |
| 05/09/1978 | US4087981 Buoyant self-propelled underwater trenching apparatus |
| 04/25/1978 | US4085973 Ocean floor surficial dredging apparatus |
| 04/25/1978 | US4085531 Grave digging machine |
| 04/25/1978 | US4085530 Back hoe ripper-trencher converter |
| 03/28/1978 | US4081035 Tractor with ripper attachment having a combined tool bar and counterweight container |
| 03/21/1978 | US4079593 Vibratory cable laying plow |
| 03/14/1978 | US4078619 Reversible air-operated apparatus of the percussive type for driving holes in ground by compacting same |
| 03/07/1978 | US4077731 Reinforcing wire laying machines and attachments |
| 03/07/1978 | US4077529 Excavator bucket and ripper tooth assembly |
| 02/28/1978 | US4076313 Underwater recovery apparatus |
| 02/14/1978 | US4073152 System for laying a subterranean water impervious asphalt layer |
| 02/14/1978 | US4073078 Adjustable dredging and trenching apparatus |
| 02/07/1978 | US4072016 Method of reconstructing and reclamation of river channels |
| 01/31/1978 | US4071100 Method of making holes of selected external configuration in preferably rock or ground formation, and a drilling machine for carrying out the method |
| 01/31/1978 | US4070978 Floating apparatus for weeding and dredging waterways |
| 01/24/1978 | US4070064 Cooling system for rock ripper tip |
| 01/24/1978 | US4069679 Undersea plow |
| 01/03/1978 | US4066134 Hydraulic post hole auger apparatus |
| 12/20/1977 | US4063523 Soil stabilizing apparatus |
| 12/20/1977 | US4063386 Restoration of drilling mud-pits |
| 12/20/1977 | US4063374 Grave opening and closing machine |
| 12/13/1977 | US4062539 Automatic control systems for rippers for use in civil works |
| 11/29/1977 | US4059911 Track filler attachment for center pivot irrigation systems |
| 11/15/1977 | US4057917 Method of padding pipe |
| 11/01/1977 | US4056059 Closed initiator system including explosive energy-initiatable blasting caps, and method |
| 10/18/1977 | US4053998 Multi-blade ditching machine |
| 10/11/1977 | US4052800 System for gathering solids from the ocean floor and bringing them to the surface |
| 09/27/1977 | US4050260 Underground cable laying machine |
| 09/27/1977 | US4050171 Depth control for endless chain type trencher |
| 09/20/1977 | US4048734 Ditch digging apparatus |
| 09/13/1977 | US4047387 Method of forming a subterranean water barrier and a plow for use therewith |
| 08/30/1977 | US4044838 Automatic control for ripper tool |
| 08/30/1977 | US4044566 Machine for forming trenches for pipelines or the like in the sea bed |
| 08/30/1977 | US4044565 Apparatus for and a method of laying a pipe line |
| 08/23/1977 | US4043135 Trench cutter for excavating trenches and for laying water pipes and drainage pipes |
| 08/23/1977 | US4043061 Ground-shaping systems for a backhoe bucket |
| 08/16/1977 | US4042261 Mounting for securing tools to vehicles |
| 08/16/1977 | US4041717 Sand shield jet sled |
| 08/09/1977 | US4040261 Vibratory plow |
| 08/02/1977 | US4038828 Vertical lift and control for plows |
| 08/02/1977 | US4038764 Shearing excavator |
| 08/02/1977 | US4038763 Orbital trench forming apparatus |
| 07/26/1977 | US4037538 Device for firing an electric detonator |
| 07/26/1977 | US4037537 Method and a device for blasting |