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)
04/1994
04/05/1994US5299885 Thermoplastic binder with dispersion of vulcanized elastomer particles and ultraviolet stabilizer
03/1994
03/31/1994DE4329957A1 Drainage mat made of natural fibres - includes nonwoven consisting of wood fibres that are stuck together
03/29/1994US5297895 Method and apparatus for controlling silt erosion
03/09/1994CN1023944C Wall protection technique for hidden drainage conduit
03/08/1994US5292073 Irrigation tubes with thickened wall sections
03/03/1994WO1994004760A1 Stabilized porous pipe
03/03/1994CA2141875A1 Stabilized porous pipe
02/1994
02/23/1994EP0583596A1 Drainage pipe
02/17/1994WO1994003688A1 Retractable hose
02/12/1994CA2079385A1 Soil drainage device with heat exchanger
02/08/1994CA2103686A1 Drainage pipe
02/01/1994US5282694 Method of reclaiming abandoned settling ponds
01/1994
01/26/1994EP0579631A1 Water extraction components produced by adhesive bonds, process for their manufacture and their use.
01/04/1994US5275506 Perforated drainpipe for railway decks
11/1993
11/23/1993US5263792 Finned subterranean drainage device and method for fabricating the same
11/23/1993US5263791 Irrigation tubing with improved discharge holes
11/18/1993DE4214497C1 Turf slit-drainage system for sports grounds etc. - fills slits to surface level with drainage material and compacts before covering and re-seeding
10/1993
10/26/1993US5256007 Ground support system
10/26/1993US5255998 Multiple-layer net structure for fluid drainage, particularly for geotechnical use
09/1993
09/16/1993WO1993018239A1 Tubular gutter system
09/16/1993CA2131546A1 Tubular gutter system
09/15/1993EP0559969A1 Embossed fabric, process for preparing the same and devices therefor
08/1993
08/25/1993EP0401334B1 Civil engineering device which can be used, in particular, for laying vertical drains
08/03/1993US5232307 For receiving water
07/1993
07/20/1993US5228802 Underground drainage facility and operation method therefor
07/20/1993CA1320346C Draining mat with high constant pressure
07/06/1993US5224796 Flat sided irrigation tubing
06/1993
06/30/1993EP0597849A4 Horizontal dewatering system.
06/22/1993US5221158 Irrigation and drainage method and apparatus
05/1993
05/25/1993US5213449 Apparatus for inserting wick drains into the earth
05/25/1993CA1318138C Method and apparatus for forming a continuous plastic sheet
05/12/1993CN2132773Y Plastic ridge board for paddy field
04/1993
04/01/1993DE4132084A1 Lightweight, corrosion-resistant sewer pipe - has plastic lining and casing and load-resistant steel or cast-iron@ core tube
03/1993
03/30/1993US5197824 System for protecting ground water under a dump
03/23/1993CA1314717C Control device for underground drainage network
03/04/1993DE4128873A1 Draining mats for e.g. waste dumps - comprise recycled plastics jointed as wires with additional compact spherical plastic parts for stability
03/02/1993US5190404 Vertical drainage device
03/02/1993CA1313955C Highway edgedrain
02/1993
02/24/1993CN1069165A Self irrigation and drainage system for sports ground
02/10/1993EP0526743A1 Apparatus for inserting wick drains into the earth
02/10/1993EP0519994A4 Drainage and erosion reduction means
02/04/1993DE4217739A1 Soak-away type structure for drainage - made from scrap plastic material converted into absorbent porous fibrous mat with added bituminous or resin binder
01/1993
01/27/1993EP0524470A2 Milling tool adapted for excavating
12/1992
12/30/1992EP0519994A1 Drainage and erosion reduction means.
12/03/1992DE4117686A1 Rotary cutting tool for excavation work - has blades arranged over body formed from two truncated cones such that spoil is led behind tool head
12/03/1992DE4117431A1 Rubbish-dump dewatering pipe - comprises steel tube forming supporting core for plastic inner and outer casings
11/1992
11/17/1992CA2042756A1 Fluid directing systems
11/05/1992DE4114098A1 Sedimentation trap manhole for land drains - has pipes of separate types and size for collection of water borne sediment to prevent clogging
10/1992
10/27/1992CA1309260C Drainage material and drainage core for a drainage system
10/13/1992US5154543 Method and apparatus for installation of drainage field
10/10/1992WO1992018702A1 Water extraction components produced by adhesive bonds, process for their manufacture and their use
10/10/1992CA2108173A1 Water procuring elements produced by bonded joints, a process for their production and their use
10/06/1992US5152634 Withstands aging, and liquid pressure
09/1992
09/08/1992US5145279 Public works machine usable more particularly for laying vertical drains
08/1992
08/25/1992US5141360 Irrigation tubing
08/19/1992EP0499442A2 Underground drainage
07/1992
07/21/1992CA1305332C Drainage system
07/14/1992US5129757 Water removal system
07/01/1992CN2108743U Filling type drainage plough
03/1992
03/31/1992US5100258 Drainage quilt
03/03/1992US5092709 Landfill site with leachate collection
02/1992
02/26/1992CN2097222U Device for fast drainage and irrigation of field
02/19/1992EP0471158A2 Method and arrangement for preventing leakage of infiltration water from a waste dump
02/18/1992CA2049234A1 System for protecting ground water under a dump
02/05/1992CN1058442A Vertical drainage device
12/1991
12/31/1991US5076726 Recreational area construction
12/18/1991EP0462038A1 Porous pipe for the transport and distribution of fluids, especially for irrigation by soaking
12/11/1991EP0460956A2 Drainage device
12/07/1991CA2043821A1 Vertical drainage device
11/1991
11/22/1991WO1991018149A1 Horizontal dewatering system
11/06/1991CN1055977A Wall protection technique for hidden drainage conduit
11/02/1991CA2018852A1 Soil drainage device
10/1991
10/22/1991US5059064 Horizontal dewatering system
10/17/1991DE4009387C1 Slope drainage system for rubbish dump - uses porous drainage blocks with sand layer for pressure distribution
10/08/1991US5054962 Process for sealing the surface of dumps
10/02/1991DE4109050A1 Underground water drainage mat - with sealing effect provided by reinforce PVC foils and has good filtering efficiency
10/01/1991CA1289757C Insulated waterproof drainage material
09/1991
09/24/1991US5051028 Method and apparatus for installation of drainage field
09/19/1991WO1991014049A1 Drainage and erosion reduction means
09/19/1991CA2078237A1 Drainage and erosion reduction means
08/1991
08/07/1991EP0439890A1 System for draining land areas
08/06/1991US5037692 Multilayer structure
07/1991
07/09/1991US5030343 Drainage cell
06/1991
06/25/1991US5026207 Recreational area construction
06/19/1991EP0433089A1 Improved fluid directing systems
05/1991
05/29/1991DE4036445A1 Drainage blocks and plates - are of cement and aggregates to give good seepage with high bending strength after temporary compression in the mould
05/21/1991US5017042 Fluid directing systems
05/14/1991US5015123 Method and apparatus for installation of drainage field
03/1991
03/26/1991US5002429 Evacuation hose for fluids
03/26/1991US5002427 Hydrophobic material used for drainage of culvert
03/26/1991US5002203 Tank with entry fitting
03/26/1991CA1281909C Riser assembly for a sub-surface irrigation and drainage system
02/1991
02/26/1991US4995759 Drainage tube construction
02/07/1991DE3925353A1 Water permeable filter packs - are used for land drainage and consist of plastics mesh bags and gravel filling
01/1991
01/29/1991US4988235 System for draining land areas through siphoning from a permeable catch basin
01/22/1991US4986699 Transportable pillow
01/17/1991DE3921496A1 Drainage cover assembly - consists of two plates one above the other with space between two and fixed together by vertical rods
01/15/1991CA1278927C Device for deep drainage of soils
01/08/1991US4983068 Construction material
12/1990
12/12/1990EP0401334A1 Civil engineering device which can be used, in particular, for laying vertical drains.
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