Patents
Sitemap › E02 - Hydraulic engineering; Foundations; Soil-shifting › E02B - Hydraulic engineering › E02B 11 - Drainage of soil, e.g. for agricultural purposes
Patents for E02B 11 - Drainage of soil, e.g. for agricultural purposes (2,085)
12/1990
12/12/1990EP0264392B1 Apparatus for laying subterranean plastic tape and pipe
11/1990
11/27/1990US4973196 Process for the intermediate sealing of dumps
11/15/1990WO1990013767A1 Method and devices for the recycling of containers
09/1990
09/05/1990EP0385557A1 Soil improving material based on polyurethane
08/1990
08/28/1990US4952450 Foam panel and block constructions
08/21/1990US4950103 Corrugated drainage tube
08/21/1990CA1272964A1 Air-borne and footstep noise insulating panel for floating plaster floors or floating wooden floors
08/16/1990DE3904519A1 Precast concrete members as ditch or water culvert under tracks, roads and other surfaces
08/14/1990US4948294 Control device for underground drainage and irrigation network
07/1990
07/24/1990US4943185 Combined drainage and waterproofing panel system for subterranean walls
07/24/1990US4942898 Automatic culvert directional flow control device
07/12/1990WO1990007611A1 Civil engineering device which can be used, in particular, for laying vertical drains
07/05/1990DE3843747A1 Method and device for constructing concrete strips of accurate profile
06/1990
06/27/1990EP0374555A1 Method of surface sealing dumps
06/20/1990EP0373459A1 Method for the intermediate sealing of dumps
06/19/1990US4934865 Catchwater drain, excavating structure and method of construction
06/15/1990CA2005339A1 Process for sealing the surface of dumps
06/15/1990CA2005338A1 Process for the intermediate sealing of dumps
06/05/1990US4930936 Partial-seepage drainage pipe with mating sleeve
05/1990
05/29/1990CA1269544A1 Method and system for the drainage of the ground, and their use
05/22/1990US4927292 Removing water from underground
05/16/1990EP0368079A1 Apparatus for demolishing pipes on the inside
05/15/1990US4925342 Water management system
05/15/1990CA1268953A1 Apparatus for laying subterranean plastic tape and pipe
05/08/1990US4923331 Composite ground water drainable system
05/08/1990US4923329 Draining method and a machine for implementing same
04/1990
04/25/1990CN2056433U Farmland underground antiseep pipe laying system
04/24/1990US4919568 System for draining land areas through siphoning from a permeable catch basin
04/17/1990US4917536 Fluid storage system
04/11/1990CN1041194A Flood-controlling and soil-conserving irrigation and drainage system
03/1990
03/28/1990EP0359961A1 Hydrophobic material used for drainage of culvert
03/20/1990US4909665 Fabric-covered structure
02/1990
02/27/1990US4904113 Highway edgedrain
02/06/1990US4898494 Subsurface water drainage system
01/1990
01/10/1990CN1038681A Complex cloth without spinning
01/02/1990US4890955 Control device for underground drainage network
12/1989
12/28/1989DE3832214C1 Process for exchanging a buried pipeline, and apparatus for carrying out the process
11/1989
11/28/1989CA1263247A1 Method and apparatus for encasing drainage pipes
11/14/1989US4880333 Subterranean fluid filtering and drainage system
11/09/1989DE3814586A1 Drainage element
10/1989
10/26/1989DE3911589A1 Pipe for draining off seepage water from the bottom of landfill sites
10/25/1989EP0338829A2 Multilayer non-woven fabric
10/24/1989CA1262410A1 Prefabricated drain-pipe with longitudinal joints
10/18/1989EP0337892A1 Device for producing a plastic mesh and produced mesh
08/1989
08/17/1989DE3803253A1 Thin-walled header pipes, in particular of plastic, for landfill sites
07/1989
07/27/1989DE3800963A1 Refuse dump inclined concrete drain shafts - has lining with two-shell plastics seal, with intermediate space between shells
07/20/1989DE3800504A1 Drainage line for landfill sites
07/19/1989CN2041324U Ladder-shaped ditcher attached to walking tractor
07/13/1989DE3744632A1 Connection for drainage pipes
07/11/1989CA1257101A1 Land drainage system
06/1989
06/28/1989EP0195017B1 Ground drainage method, system for implementing such method and application of the method
06/20/1989US4840515 Subterranean drain
05/1989
05/23/1989US4832531 Apparatus for laying subterranean plastic tape and pipe
05/09/1989US4828432 Apparatus for forming a continuous plastic sheet
04/1989
04/25/1989US4824288 Culvert drainpipe system and method of use
04/11/1989US4820080 Process for the construction of a drain system
03/1989
03/28/1989US4815963 Drainage mat with high crushing strength and waste-dump base containing said mat
03/28/1989US4815892 Drainage material and drainage core for a drainage system
03/22/1989EP0307541A2 Drainage mat
03/09/1989DE3728255A1 Ground anchor strip
02/1989
02/22/1989EP0303867A2 Edgedrain
01/1989
01/24/1989CA1249135A1 Method of inhibiting hydrostatic pressure at subterranean structural surfaces
01/04/1989EP0297907A1 Plastics drainage pipe and manufacture thereof
12/1988
12/27/1988US4793728 Subsurface water drainage system
12/21/1988CN87105995A Fine textured soil reclamation method
12/14/1988EP0294740A1 Drainpipe and method of inserting it
11/1988
11/02/1988CN87102840A Device for draining soils in depth
10/1988
10/25/1988US4780165 Guiding fibrous or loose filler through hollow tube, applying flexible envelope sleeve and rotating; permeability
09/1988
09/15/1988DE3815443A1 Drainage line for soil draining
09/08/1988DE3800057A1 Drainage-line system
08/1988
08/17/1988EP0278605A1 Drainage material and drainage core for a drainage system
07/1988
07/21/1988DE3742960A1 Dewatering plate
07/12/1988US4756643 Apparatus for placement of lateral drain lines onto a main drainage line for prefabricated composite drainage structures
07/12/1988US4756327 Irrigation head control device and method
07/05/1988US4755408 Synthetic resin foam hollow profiles adhered or welded together to form block or panel
06/1988
06/28/1988US4753841 Air-borne and footstep noise insulating panels of synthetic resin foam for floating plaster floors or floating wooden floors
06/14/1988CA1237904A1 Drainage mat
06/07/1988US4749306 Formed corrugated plastic net for drainage applications
05/1988
05/11/1988EP0267013A2 Method and apparatus for forming a continuous plastic sheet
05/05/1988DE3637168C1 Full filter pipe for drainage purposes
05/03/1988CA1235911A1 Porous jacket-type weeping tile
04/1988
04/28/1988DE3636207A1 Drainage laminate
04/27/1988EP0264392A1 Apparatus for laying subterranean plastic tape and pipe.
04/20/1988CN87213472U Vertical cone type spiral channeller
03/1988
03/16/1988EP0260068A1 Formed corrugated plastic net for drainage applications
03/15/1988US4730953 Insulated waterproof drainage material
03/09/1988EP0259165A2 Subsurface drainage matting
03/02/1988EP0257191A2 Method for installing highway drainage mat
02/1988
02/18/1988DE3627886A1 Filter for a drainpipe
01/1988
01/05/1988CA1230980A1 Elongated bendable drainage mat
12/1987
12/23/1987EP0249921A2 Drainage mat with high resistance to pressure and ground of deposition by this mat
12/22/1987US4714376 Hillslope landslide stability drain
11/1987
11/11/1987EP0244651A2 Cell like structure
11/04/1987CN87103427A Drainage cell
11/03/1987US4704047 Land drainage system
10/1987
10/28/1987CN87102670A Apparatus for laying subterranean plastic tape and pipe
10/15/1987DE3705573A1 Sheathing device, in particular for sheathing drainage pipes
09/1987
09/24/1987WO1987005646A1 Apparatus for laying subterranean plastic tape and pipe
09/02/1987EP0235108A2 Draining plate and method of producing draining plate
08/1987
08/20/1987DE3605329A1 Double-walled seepage-line pipe of plastic
1 ... 9 10 11 12 13 14 15 16 17 18 19 20 21