Matches 301 - 350 out of 405 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
4645377 Method of causing sedimentation of sedimentary solid material transported in a body of water, such as a lake, a sea, or an ocean  
In a sea, lake or other body of water, sedimentation of sedimentary solid material may be obtained in desired areas by reducing the hydraulic pressure in the sea floor or lake bottom layer in the...
4639165 Drainage tube  
Subsoil drain strip or sheet elements comprising a core surrounded by a polymer or glass fibre filter cloth. The core has a generally planar configuration with hollow formed-in flat topped...
4626130 Drip irrigation system  
An elongated water distributing hose capable of effectively watering large areas with readily available water pressures and in a matter whereby an essential uniform watering is achieved. This...
4626129 Sub-soil drainage piping  
A sub-soil drainage pipe segment 12 comprises a first round cylindrical portion 14 forming a socket 16 and a second round cylindrical portion 18 integral with and extending from the first portion,...
4624603 Underground drain pipe  
An underground drain pipe having an improved soil pressure resisting strength. A main portion of the pipe is constituted by a generally U-shaped strengthening member. The strengthening member is...
4622138 Vertical drain  
A vertical drain for dewatering saturated, compressible soils. When stored and delivered the drain has a rectangular cross section and can be rolled on reels, but since the drain can be folded...
4620817 Underground discharge for downspouts and sump pumps  
Discharge water from a building, e.g., rainwater discharged from downspouts or groundwater discharged from sump pumps, is carried away from the building in an underground pipe to an aboveground...
4619765 Filter bottom construction  
A filter block used in the construction of a multi-block filter bottom includes upper and lower lateral sections extending between end walls and being separated from each other by a horizontal...
4615642 Variable porosity irrigation pipe  
Porous pipe having a porosity which varies continuously and controllably with length is produced by extruding a mixture of particles of prevulcanized elastomer such as reclaimed crumb rubber and a...
4598277 Water detection subassemblies and method of forming same, for use in computer processing centers  
The present invention relates to a water detection subassembly and method for forming same, for use in association with water detection system operating within a digital computing center. The...
4588325 Modular rock replacing drain field apparatus  
Apparatus and a method for constructing a sewage drain field without a rock media. The drain field includes a plurality of lengthwise connected drain pipes suspended above the trench bottom within...
4577998 Production of PVC irrigation pipe and the pipe so produced  
Process for producing flexible PVC irrigation pipe by extruding a plasticized PVC composition containing a melt strength-enhancing aid and a chemical blowing agent and (a) the extruded melt being...
4577997 Irrigation pipe  
An irrigation pipe, primarily for subterranean irrigation, said pipe having incisions in the longitudinal direction of the pipe, which incisions will open under the action of the pressure enabling...
4560302 Draining ditch for draining of roadways  
The invention relates to a draining ditch for the draining of roadways comprising a ditch body of U-shaped cross-sectional area which is potted in the concrete bed of the roadway and a cover plate...
4538386 Drainage system and method  
A drainage system for draining water away from a building having a horizontal base and walls extending vertically from the base. The drainage system includes first drain means located in a first...
4523613 Multi-layered corrugated conduit with "black-eye" like apertures  
The conduit includes a top wall (A) and a base (B). The top wall A has an apex area (10) which is connected with a first corrugated side wall (12) and a second corrugated side wall (32). The side...
4523874 Plastic underdrainage tube  
A plastic underdrainage tube of generally reticular configuration formed by integrally extruding a plastic material is disclosed. The tube is basically composed of axially spaced apart annular...
4517316 Porous irrigation pipe prepared from particulate elastomer and thermoplastic binder containing controlled moisture content  
A mixture of crumb rubber, binder, such as polyethylene, and slip contact agent, such as talc, and lubricant, such as a metal stearate, is formed in a blender (10), is shaped into pellets (32) by...
4498807 Drainage channel with means for maintaining proper slope during installation  
An anchor 20 is disclosed for supporting an open top drainage channel 40 within a trench. Anchor 20 permits accurate placement and easy adjustment of channel 40 and thereafter permits the entire...
4490067 Modular drain system  
A below ground drain and conduit member to receive surface water which also functions as a expansion and contraction joint is provided. The member comprises a hollow longitudinal member having an...
4463529 Combined landscaping and foundation wall protective article  
Articles are disclosed for use in providing both water-proofing protection to a foundation wall, and a support system for decorative landscaping material around the perimeter of a building. The...
4448567 Method for installing lines, pipes or cables underground  
This invention relates to a method for efficiently installing lines, pipes or cables underground. In operation, a boring head which forms an elongated bore underground along with the movement of a...
4430020 Drip irrigation hose  
A drip irrigation hose which is characterized by a tubular hose member having a major or primary channel or conduit and a secondary regulatory conduit or channel plate laminated between the lapped...
4421810 Perforated drainpipe and method of making same  
A perforated drainpipe in which at least one sheet comprised of polymeric material is shaped in generally tubular configuration with adjacent edges thereof being slightly spaced apart to define...
4402631 Subsurface irrigation  
A subsoil irrigation system comprising a flexible conduit with a longitudinal row of spaced outlet nozzles passing through the conduit and exteriorly protected by a flat having an edge secured to...
4365911 Surface drainage culvert  
A surface drainage culvert of the type comprising a pipe section which is cut longitudinally forming an aperture along the upper surface of the pipe and which has an upstanding grate assembly...
4330222 Irrigation means and method  
An underground watering system having a water distribution pipe and at least one strainer box over the water distribution pipe, the strainer box containing gravel or other particulate matrial, and...
D264116 Drain pipe  
4318892 Heap leaching device  
Disclosed is a hollow, elongated heap leaching device for use in above-ground leaching of metal bearing ores. The device has an annular cross-section, an inlet opening near its upper end, a...
4313692 Septic tank drainage conduit structures  
This invention is in regard to septic tank drainage conduit structures, including an open-sided conduit structure for installation in clay type soil conditions and a U-shaped conduit structure for...
4297055 Method of installing underground pipe  
A process of installing a pipe system under an existing building constructed upon a concrete slab or other foundation not permitting access beneath the ground floor, for the purpose of periodic...
4293237 Irrigation and drainage apparatus  
The present invention constitutes an improved subsurface irrigation and drainage apparatus and system for its use that includes at least one main pipe or line arranged to receive a water flow...
4288174 System for groundwater flow control  
A groundwater flow diversion system for reducing the rate of groundwater flow beneath a designated land area. The diversion system is comprised of one or more conduits located substantially around...
4260284 Filter tube for drain purposes  
A filter tube for drain purposes provided with openings debouching at its outer surface, said openings being adapted to be connected to a sub-atmospheric source through at least one discharge...
4246936 Pipe for trickle irrigation  
A drip irrigation pipe for use aboveground having conical apertures in the wall of the pipe at spacings corresponding to the space between the plants to be irrigated. The apertures diverge from the...
4246305 Drainage structure and process  
This invention relates to drainage by use of elongated strips of such a physical structure that they allow an exchange of fluids between their core and the medium in which they are placed. The...
4245924 Arch conduit  
Disclosed is a foldable arched conduit suitable for use as drain tubing, culverts and the like. The conduit has the cross section of a parabolic arch with a flat base. The arched portion of the...
4234267 Drain trap  
A drain trap comprises a plurality of flat water conveying plates with fine clearances therebetween and securely fixed to each other by ribs. Below said water conveying plates is fixed another...
4193711 Flow control valve for subsurface irrigation system  
An improved valve for a subsurface irrigation system which valve includes a foot with a pair of oppositely facing laterally opening holes. The foot is sized to extend through a hole in the bottom...
4188154 Apparatus for watering and draining soil  
A double-duct conduit for irrigation and drainage comprises an inner small-diameter duct secured eccentrically inside an outer large-diameter duct with the walls of the ducts closely adjacent to...
4182581 Pipe for underdraining  
A pipe for underdrainage comprises (1) a liquid-collecting pipe; (2) a plurality of discontinuous protrusions on the outer surface of the liquid-collecting pipe; (3) a filter layer capable of...
4182580 Underdrainage pipe  
An underdrainage pipe comprises a liquid-collecting pipe, protrusions on the liquid-collecting pipe, a filter layer around the liquid-collecting pipe and a liquid-conducting way, and the...
4180348 Subsurface irrigation and drainage system  
An irrigation and drainage system for cultivated fields, croplands and the like for supplying and extracting water and similar liquids through a subsurface conduit network automatically responsive...
4175882 Hose conduits for drip- or trickle emission  
A hose conduit comprises an inner tubular fluid conducting space which is surrounded by a ringshaped space. Openings are provided in the wall of the inner hose leading into the ringshaped space. In...
4156324 Method and apparatus for artificial irrigation of flower beds and garden plots etc.  
A method and apparatus are provided for the artificial irrigation of plants and flower beds, garden plots, plant containers, and the like, whether indoors or outdoors. The irrigation containers are...
4145157 Modular drain field section  
A modular drain field section and a method for making a drain field section are disclosed having upper and lower casings which are connected together to form each drain field section. Both upper...
4140421 Soil irrigation system  
The invention relates to a soil irrigation system comprising subterranean distribution pipes for distributing water to overlying soil, each pipe having a perforated upper wall whose outer surface...
4134268 Drainage field pipe  
An improved drainage field pipe is disclosed which is a cylindrical tube of substantially circular cross section composed of an organic polymer material, having a principal axis slightly inclined...
4101774 X-ray system having a driving mechanism for an X-ray source and an X-ray detector  
The tomography movements of the X-ray source and detector are matched electronically to each other by comparing the positions thereof. Via a memory, a weighed position for the source is determined...
4095618 Rodent deterrent irrigation tube  
An irrigation deterrent tube, particularly adapted for drip or trickle irrigation, the tube having, normally, a flat configuration when free of internal pressure, and expansible to an essentially...
Matches 301 - 350 out of 405 < 1 2 3 4 5 6 7 8 9 >