| Patents for E02F 5 - Dredgers or soil-shifting machines for special purposes (6,683) |
|---|
| 07/26/1977 | US4037422 Articulated jet sled |
| 07/19/1977 | US4035969 Telescopic columns of machines for making foundations, and the telescopic columns thereby derived |
| 07/12/1977 | US4035024 Hard rock trench cutting machine |
| 07/12/1977 | US4035022 Self-propelled pickup device for picking up materials lying on the bottom of the sea |
| 07/12/1977 | US4034490 Automatic depth control for endless chain type trencher |
| 06/28/1977 | US4031964 Automatic control system controlling a ripper used on a construction equipment |
| 06/14/1977 | US4028902 Apparatus for laying elongated flexible tubing |
| 06/14/1977 | US4028822 Manually operable depth control for trenchers |
| 05/31/1977 | US4026376 Underwater tractor and intake and exhaust means therefor |
| 05/17/1977 | US4023288 Backhoe compactor/scraper apparatus and method |
| 05/10/1977 | US4022028 Submarine pipe trenching apparatus |
| 05/03/1977 | US4020952 Articulated stand apparatus for laying and recovering pipeline |
| 04/19/1977 | US4018163 Placement method for Q.D. charges using minimum diving time |
| 04/05/1977 | US4015348 Ripper assembly for tractor drawn scraper |
| 03/29/1977 | US4014175 Cable and pipe laying machine |
| 03/22/1977 | US4013129 Ripper for attachment to tractor |
| 03/22/1977 | US4012918 Submarine cable laying system |
| 03/15/1977 | US4011727 Movable cable plow for constructing underwater cable |
| 03/08/1977 | US4010805 Flow through brush cutter |
| 02/01/1977 | US4005944 Tamping apparatus |
| 01/18/1977 | US4003603 Impact means for ripper |
| 01/18/1977 | US4003122 Apparatus and method for applying filter to a drainage tubing |
| 12/28/1976 | US3999315 Adjustable attachment for a backhoe |
| 12/28/1976 | US3999312 Water jet type underwater ground excavator |
| 12/21/1976 | US3998493 Combined milling and impact apparatus for tunneling |
| 12/21/1976 | US3998065 Horizontal wellpointing method and apparatus |
| 12/14/1976 | US3996758 Method for placement of production casing under obstacle |
| 12/07/1976 | US3995702 Reversible pneumatic percussive device for making holes in ground by compaction |
| 12/07/1976 | US3995439 Device for embedding objects such as continuous pipes into water bottoms |
| 12/07/1976 | US3995344 Low profile soaking pit machine |
| 11/30/1976 | US3994139 Apparatus for and a method of laying a pipe line |
| 11/30/1976 | US3994083 Trencher construction |
| 11/23/1976 | US3992791 Slope grader with longitudinally movable guide frame |
| 11/16/1976 | US3991830 Land clearing debris pulverizer |
| 11/16/1976 | US3991494 Conveyor attachment for spoils removal from a trench digging machine |
| 11/09/1976 | US3990529 Ditcher |
| 11/09/1976 | US3990377 Self-propelled machine for sea-bed work |
| 11/02/1976 | US3989150 Pipe carrying attachment for construction equipment |
| 10/26/1976 | US3988004 Drive jaws for a pipe and rod pusher device |
| 10/26/1976 | US3988003 Pipe guide means for a rod and pipe pusher |
| 10/26/1976 | US3987729 Device for firing an electric detonator |
| 10/26/1976 | US3987563 Excavator |
| 10/19/1976 | US3986280 Apparatus for forming a concrete wall |
| 09/28/1976 | US3982403 Laying cables and the like under water |
| 09/21/1976 | US3981089 Padding machines |
| 09/14/1976 | US3980568 Crystals |
| 09/14/1976 | US3979843 Trenching chain with scoop members |
| 09/07/1976 | US3978679 Method and apparatus for underwater trench excavation and pipeline laying |
| 09/07/1976 | US3978673 Method of disposing of liquid waste |
| 08/24/1976 | US3975843 Portable power digging tool |
| 08/24/1976 | US3975784 Marine structure |
| 08/10/1976 | US3973632 Ripper for tractors and similar vehicles |
| 08/03/1976 | US3972285 Object array placement device |
| 07/20/1976 | US3970154 Tool power system usable as substitute for vehicle propulsion |
| 07/20/1976 | US3969904 Method of laying a pipeline in a trench |
| 07/06/1976 | US3967454 Trench shoring apparatus |
| 07/06/1976 | US3967396 Undercutter with rotary trencher |
| 07/06/1976 | US3967395 Crossing undercutter and switch undercutter mounted on tractor-type vehicle |
| 06/29/1976 | US3966169 Rod and pipe pusher, puller device |
| 06/22/1976 | US3964184 Method of removing material from a bed of a body of water |
| 06/15/1976 | US3963135 Method of subordinating the orientation of a grab on a public works machine to the rotation of the turrest of this machine and to the machine |
| 06/08/1976 | US3961429 Excavating device |
| 06/01/1976 | US3959977 Concrete slip forming apparatus |
| 05/25/1976 | US3958704 Pipe laying attachment |
| 05/25/1976 | US3958465 Driving of a shaft with pendulum mount |
| 05/25/1976 | US3958347 Drain ditch digging attachment for a back-hoe |
| 05/18/1976 | US3956901 Sewer laying system |
| 05/04/1976 | US3953932 Casino chip and method of making |
| 05/04/1976 | US3953931 Excavator |
| 04/27/1976 | US3952810 Slit trenching and cable laying device |
| 04/27/1976 | US3952532 Underwater trenching and cable laying apparatus |
| 04/06/1976 | US3948329 Apparatus for effecting ground penetration of a ground engaging member |
| 04/06/1976 | US3948059 Cable plow chute multi-lay cables |
| 03/23/1976 | US3945608 Anchoring means for earth tunneling devices |
| 02/24/1976 | US3939784 Fuel conduit |
| 02/10/1976 | US3936961 Apparatus for covering drainage tubing with fine textured soil granules |
| 02/03/1976 | US3935712 Cable laying vibratory plow assembly |
| 01/27/1976 | US3934738 Tool connecting |
| 01/27/1976 | US3934363 Trench back filling and compacting apparatus |
| 01/20/1976 | US3933053 Ditcher |
| 01/20/1976 | US3932951 Trench digging machinery |
| 01/13/1976 | US3931717 Multiple cable chute |
| 01/06/1976 | US3930741 Vibratory compactor attachment |