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| Number | Title | Issue Date |
| 5573349 | Sediment dike with absorber apparatus Apparatus for decontamination of a liquid which includes an outer envelope, apparatus for directing a liquid into the outer envelope, and apparatus for directing a liquid out of the envelope. The apparatus for directing the liquid out of the envelope incl... | 11/12/1996 |
| 5573347 | Drain preparation apparatus and method of using same An apparatus and method for preparing a drain from a trench in a single pass by lining the trench with a filter fabric, a first layer of bulk material, a drain pipe and a second layer of bulk material. A guide chute guides the filter fabric into the trenc... | 11/12/1996 |
| 5567077 | Drainage network The present invention concerns a drainage network, which is characterized by the fact that said drainage network is a network for ground constructions equipped with drainage belts with which a three-dimensional drainage network system for diverting water ... | 10/22/1996 |
| 5564857 | Slutted drain A slotted drain includes a drain pipe having an elongated narrow slot extending lengthwise along its top surface. A lower grate is rigidly secured to the elongated slot and is formed by a pair of bearing plates connected to one another by a series of spac... | 10/15/1996 |
| 5553970 | Water-saving irrigation device A water-saving irrigation device of the type that is utilized for the irrigation of vegetation and trees in arid desert areas is provided. The irrigation device includes a water inlet port, a water outlet port and a water storage container. The water inle... | 09/10/1996 |
| 5551797 | Underground drainage sump system and method of retrofitting for protecting a floor slab A method of retrofitting an underground water drainage sump system to below a floor slab for protecting the floor slab includes the steps of forming a sump hole below a floor slab of a building, drilling into and removing soil from below the floor slab so... | 09/03/1996 |
| 5531888 | Arrangement for separation of coarse matter and/or bulky solids in rainwater relief structures An arrangement for the separation of pollutants and, as the case may be, bulky solids, i.e. coarse matter, in separating structures, such as rainwater relief structures for the protection of bodies of water. The rainwater or combined water exceeding a cri... | 07/02/1996 |
| 5525416 | Play area surface treatment A play area surface treatment is provided comprising, from top to bottom: a layer of polymeric mesh, a layer of landscape separator, six inches of ground rubber buffing, a second layer of landscape separator, and six inches of pea gravel as a base materia... | 06/11/1996 |
| 5525007 | Sewer construction Prefabricated concrete pipe encasements are disclosed for stabilizing underground conduit systems from movement caused by flotation, back filling or settling. In one embodiment, a sewer chimney includes a plastic riser connected between a tee-fitting in a... | 06/11/1996 |
| 5516232 | Runoff water diverter A portable runoff water diverter can be placed in the path of a flow of runoff water to divert at least a portion of the water to a point where it can advantageously be used, for example to irrigate landscaping. The diverter defines at least one channel t... | 05/14/1996 |
| 5516229 | Drain field system A drain field and a drain field assembly for use with a sewage disposal system are provided that do not require the use of aggregate in the form of rock, gravel, shale, or the like. The assembly contains a distribution pipe having a plurality of holes dis... | 05/14/1996 |
| 5511904 | Storm water infiltration A funnel structure for filtering and discharging storm sewage into an aquifer from a bottom of a manhole. The funnel is adapted to receive unitized filters. These filters can be selected from known materials to most effectively remove known types of conta... | 04/30/1996 |
| 5511903 | Leaching chamber with perforated web sidewall A molded plastic leaching chamber, for dispersing or collecting liquids in soil, has a corrugated arch shape. The sidewall of the chamber is comprised of alternating slot-perforated peaks and valleys connected by slot-perforated deep webs. The unit surfac... | 04/30/1996 |
| 5507595 | Apparatus for treating soil Apparatus for treating the soil of a grass playing field that includes a piping system containing perforated pipe lines seated in a distribution bed beneath the soil of the playing field. A blower having a discharge port and a suction port is selectively ... | 04/16/1996 |
| 5495696 | Foundation drainage system A unique water drain system is utilized for eliminating subgrade water which usually accumulates below ground level and causes cracks or leaks in the concrete foundation. The present system is uniquely designed to be used with permanent wood foundations. ... | 03/05/1996 |
| 5496133 | Transport assembly for pump and discharge line A water table lowering assembly includes a discharge line connected to a submersible pump. At least two brackets are secured along the length of the discharge line. A cable is connected at one end to the submersible pump. The cable extends parallel to the... | 03/05/1996 |
| 5492434 | Water-retaining barrier and method of construction An agricultural barrier providing a medium for supporting plant life in an arid or semi-arid land region having a ground surface, the barrier being disposed on native soil of the region, the barrier including: a first layer composed of pieces of basalt, t... | 02/20/1996 |
| 5487621 | Large-depth underground drainage facility and method of running same An underground water channel is provided in an underground of a large depth, and rain water and the like flow into this underground channel from flood control channels, conduits and rivers through vertical shafts. A pump well of a pump station is connecte... | 01/30/1996 |
| 5480260 | Ground water collection method and apparatus A method and system for collecting ground water segregated from storm water are provided in which an existing storm sewer pipe may be retrofitted by forming a ground water channel and a storm water channel therein. The two channels may be formed by dispos... | 01/02/1996 |
| 5468097 | Method of circulating ground water in ground regions with a fall of ground water level A method of circulating ground water in a ground region with a fall of a ground water level, comprises the steps of forming a first well shaft with a water permeable shaft wall in a ground region through which ground water flows, forming at least one seco... | 11/21/1995 |
| 5468096 | Means for securing a cover over a drainage channel A means for securing a cover to a drainage channel body defining a drainage channel and wherein said channel body defines at least two cutouts located substantially opposite one another in inner side walls defining said channel comprises at least one cros... | 11/21/1995 |
| 5466091 | Surface drainage apparatus Surface drainage apparatus comprises a channel body defining a drainage channel with a cover defining apertures through which drainage can pass into the drainage channel. A fixing means is provided for attachment of the cover to the channel body and compr... | 11/14/1995 |
| 5460867 | Separation layer for laying grass-surfaces on sand-and/or gravel base A separation layer (12) for laying grass surfaces (10; 16) on a sand or gravel base (13), which layer is in the form of a rigid plastic sheeting with parallel side edges. The surface of the sheeting is embossed by thermo-forming so that it presents a unif... | 10/24/1995 |
| 5458436 | Modular drainage tube construction system A modular junction fitting system for joining ends of two or more lengths of edge-type drainage robing (being of the type that is substantially taller than it is wide in transverse cross-section). The junction fitting of the invention includes a central g... | 10/17/1995 |
| 5429453 | Means for resurfacing tennis courts and the like An improved surface covering for use in tennis courts or other fields on which games are played and which require a hard surface. The surface covering includes layers of materials applied on an old existing covering which is inferior for one or more reaso... | 07/04/1995 |
| 5427473 | Tennis court irrigation An underground system for supplying water to and removing water from an athletic facility having a surface which is susceptible to excessive moisture and dryness. The system includes a plurality of substantially level watering grids positioned in a layer ... | 06/27/1995 |
| 5425600 | Drainage block feedthrough for assembly of walls constructed of specialized retaining blocks A drain module is substituted for a retaining block during the construction of a retaining wall of interlocking retaining blocks to provide a drain. The drain module includes an inlet tube for coupling to a drainage pipe, a flange having an outer face att... | 06/20/1995 |
| 5419655 | Collection of liquid from below-ground location A method of retrieving liquid from a below-ground collection area by permitting gravity flow of the liquid from the collection area to a first closed container; monitoring the level of the liquid in the closed container; and after the liquid reaches a giv... | 05/30/1995 |
| 5415499 | Method for the repair of existing manholes using elastomeric materials This invention relates to a method of repairing existing manholes and similar structures by applying a fast-curing elastomeric material using spray techniques whereby a homogeneous, non-porous, and monolithic coating or lining is formed. The fast-curing e... | 05/16/1995 |
| 5405218 | Method for the repair of existing manholes using elastomeric materials This invention relates to a method of repairing existing manholes and similar structures by applying a fast-curing elastomeric material using spray techniques whereby a homogeneous, non-porous, and monolithic coating or lining is formed. The fast-curing e... | 04/11/1995 |
| 5403118 | Optimum water retention system for use in agricultural fields The invention is for an optimum water and soil retention system for use in an agricultural field, which includes watershed units having a basin, borders located on opposite sides of the basin, an ingress and an egress weir located at opposite ends of the ... | 04/04/1995 |
| 5387054 | Scouring system for automatically scouring an empty liquid reservoir A scouring system for automatically scouring an empty liquid reservoir, for example, a flood basin, includes at least one scouring liquid chamber with a scouring opening in communication with a siphon-like scouring duct. Any liquid contained in the scouri... | 02/07/1995 |
| 5383744 | Subirrigation system and method An underground agricultural irrigation system in which annular semi-cylindrical or concave-convex water reservoirs, formed by splitting used or abandoned vehicle tire casings in half, are buried concave side up at appropriate subsurface depths to trap and... | 01/24/1995 |
| 5378357 | Light-weight drainage line unit employing end-to-end connectors Preassembled drainage line units for a septic tank nitrification field employ a predetermined length of perforated conduit having an aggregation of discrete, crush resistant, light-weight elements surrounding the length of conduit and a perforated sleeve ... | 01/03/1995 |
| 5366318 | Sump assembly The present invention involves a flexible annular member passing through a wall opening. The flexible annular member is positioned about a conduit passing through the wall opening to enable the conduit to pass through the wall at an angle up to and even g... | 11/22/1994 |
| 5366323 | Drainage and erosion reduction means Used motor vehicle tires are subjected to a pair of radial severing cuts and thereby a peripheral segment of each tire removed. The tire remainder portions, generally constituting 1/2 to 1/3 of the original tires, are then aligned side by side and connect... | 11/22/1994 |
| 5360289 | Drainage water pumping station and method for operating the same A plurality of drainage pumps are disposed on a high floor gradation state in a circular arrangement. A plurality of drainage pumps are disposed on a low floor gradation state in a circular arrangement. The drainage pumps disposed on the high floor gradat... | 11/01/1994 |
| 5350251 | Planted surface moisture control system A system is provided for controlling the moisture content of a planted surface. The system includes a plurality of drain conduits located beneath the planted surface for collecting liquid from the planted surface. The system also includes a sealed collect... | 09/27/1994 |
| 5345741 | Silt blockage for catch basins A silt barrier includes a main frame (10) which is disposed horizontally over a catch basin which is to have silt blocked therefrom, the main frame (10) has end frames (24, 25) rotatable from a stored flat position into a vertical working position. A pair... | 09/13/1994 |
| 5342144 | Stormwater control system Stormwater from a watershed is collected in a stormwater collection basin for water quality improvement primarily by settling of suspended solids, and also for control of the flow rate through downstream flow channels. The outflow rate from the basin is g... | 08/30/1994 |
