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Class Information
Number: 405/43
Name: Hydraulic and earth engineering > Drainage or irrigation > Porous or apertured pipe, flume, or tileway
Description: Method or apparatus wherein drainage or irrigation is effected by a structure having a water-conducting channel or passage formed therein and wherein the water is removed from or applied to the soil through (a) a port formed in the side wall of the channel or passage, (b) a foraminous side wall portion of the structure, or (c) the connection or joint between elements used to make up the water conducting structure.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6398455 |
Method for stratified construction and heating a grass pitch, particularly a football ground, and a grass playing field built up in accordance with the method |
Jun. 4, 2002 |
| 6383372 |
Sequential flow filtration chamber for treatment of waste water and associated method |
May. 7, 2002 |
| 6375388 |
Affluent distribution system capable of being horizontally offset or curved |
Apr. 23, 2002 |
| 6375389 |
Method for fitting drainage devices into the soil, and drainage pipes for carrying out said method |
Apr. 23, 2002 |
| 6336770 |
Drainfield pipe installation device |
Jan. 8, 2002 |
| 6322288 |
Storm or waste water chamber featuring strain relief notches for flexing and contouring the chamber |
Nov. 27, 2001 |
| 6315493 |
Retrievable filter element for subsurface drainage |
Nov. 13, 2001 |
| 6302621 |
Segment for intake tunnels |
Oct. 16, 2001 |
| 6279275 |
Foundation wall construction having water impervious drain panels |
Aug. 28, 2001 |
| 6273638 |
Automated air handling system for sports field |
Aug. 14, 2001 |
| 6270661 |
System for infiltrating water into the ground |
Aug. 7, 2001 |
| 6267882 |
System for filtration of septic tank sewage effluent |
Jul. 31, 2001 |
| 6254308 |
Equipment and a method for partially drying a zone of ground containing a liquid |
Jul. 3, 2001 |
| 6247874 |
Drainage and strap drain materials |
Jun. 19, 2001 |
| 6241421 |
Subterranean drain assembly |
Jun. 5, 2001 |
| 6227763 |
Waterway |
May. 8, 2001 |
| 6221445 |
Composite artificial turf structure with shock absorption and drainage |
Apr. 24, 2001 |
| 6202700 |
Self-flushing pipe |
Mar. 20, 2001 |
| 6164868 |
Prefabricated vertical earth drain with relief protrusions |
Dec. 26, 2000 |
| 6142703 |
Encapsulated turf maintenance system |
Nov. 7, 2000 |
| 6139221 |
Constant hydraulic head moat and method for controlling regional ground water flow |
Oct. 31, 2000 |
| 6129482 |
Reversible interlocking field drain panel |
Oct. 10, 2000 |
| 6120209 |
Method of installing drainfield pipe |
Sep. 19, 2000 |
| 6095718 |
Subsurface fluid drainage and storage systems |
Aug. 1, 2000 |
| 6095720 |
Stabilized fluid barrier member and method of forming same |
Aug. 1, 2000 |
| 6089788 |
Vertical drain |
Jul. 18, 2000 |
| 6088959 |
Process for conditioning soil |
Jul. 18, 2000 |
| 6082928 |
Draining wall, method for producing same and element implemented thereby |
Jul. 4, 2000 |
| 6076993 |
Leaching chamber |
Jun. 20, 2000 |
| 6076992 |
Underdrain pipe |
Jun. 20, 2000 |
| 6048132 |
Filter underdrain with prefabricated cells |
Apr. 11, 2000 |
| 6048131 |
Subterranean fluid filtering and drainage system |
Apr. 11, 2000 |
| 5997735 |
Septic tank with downstream trickling filter |
Dec. 7, 1999 |
| 5988943 |
Liquid distribution device for drainfields |
Nov. 23, 1999 |
| 5989416 |
Wastewater treatment system |
Nov. 23, 1999 |
| 5984574 |
Drip field manifold system |
Nov. 16, 1999 |
| 5980155 |
Composite geosynthetics and methods for their use |
Nov. 9, 1999 |
| 5951203 |
Leaching field construction |
Sep. 14, 1999 |
| 5938372 |
Subsurface irrigation apparatus and method |
Aug. 17, 1999 |
| 5934828 |
Drainage method and strap draining materials therefor |
Aug. 10, 1999 |
| 5924745 |
Connector assembly for an expandable slotted pipe |
Jul. 20, 1999 |
| 5916104 |
Box, an insulating system, and a ground drainage system |
Jun. 29, 1999 |
| 5913635 |
Pipe couplings for irrigation systems |
Jun. 22, 1999 |
| 5911540 |
Subterranean liquid distribution apparatus |
Jun. 15, 1999 |
| 5908266 |
Flow drain |
Jun. 1, 1999 |
| 5899031 |
Partition structure having a screen |
May. 4, 1999 |
| 5893681 |
Flexible pipe having a flexible wrap applied thereto and method for attaching the wrap |
Apr. 13, 1999 |
| 5890837 |
Multiple compartment drainage conduit with diverters |
Apr. 6, 1999 |
| 5890838 |
Storm water dispensing system having multiple arches |
Apr. 6, 1999 |
| 5857297 |
Foundation wall construction |
Jan. 12, 1999 |
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