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Class Information
Number: 405/45
Name: Hydraulic and earth engineering > Drainage or irrigation > Porous or apertured pipe, flume, or tileway > Porous
Description: Method or apparatus wherein the sidewall, a portion of the sidewall, or an aperture formed therein includes a foraminous material.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6558078 |
Foundation and soil irrigation system utilizing wicking materials |
May. 6, 2003 |
| 6539681 |
Spacer plate for a hollow floor and a hollow floor made therewith |
Apr. 1, 2003 |
| 6540436 |
Deep root watering unit |
Apr. 1, 2003 |
| 6527477 |
Erosion control rolls |
Mar. 4, 2003 |
| 6467994 |
Apparatus and method for beneficial use or handling of run-off or collected water |
Oct. 22, 2002 |
| 6464865 |
Wastewater dispersal system |
Oct. 15, 2002 |
| 6443652 |
Aggregate chamber leach lines for leaching effluent and associated method |
Sep. 3, 2002 |
| 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 |
| 6375389 |
Method for fitting drainage devices into the soil, and drainage pipes for carrying out said method |
Apr. 23, 2002 |
| 6315493 |
Retrievable filter element for subsurface drainage |
Nov. 13, 2001 |
| 6312190 |
Method and apparatus for enhancement of prefabricated composite vertical drains |
Nov. 6, 2001 |
| 6290429 |
Multi-level leaching system |
Sep. 18, 2001 |
| 6267882 |
System for filtration of septic tank sewage effluent |
Jul. 31, 2001 |
| 6247874 |
Drainage and strap drain materials |
Jun. 19, 2001 |
| 6241421 |
Subterranean drain assembly |
Jun. 5, 2001 |
| 6221445 |
Composite artificial turf structure with shock absorption and drainage |
Apr. 24, 2001 |
| 6142703 |
Encapsulated turf maintenance system |
Nov. 7, 2000 |
| 6139221 |
Constant hydraulic head moat and method for controlling regional ground water flow |
Oct. 31, 2000 |
| 6088959 |
Process for conditioning soil |
Jul. 18, 2000 |
| 6076992 |
Underdrain pipe |
Jun. 20, 2000 |
| 6073659 |
Method and apparatus of removing liquid from underground cavity by directional drilling |
Jun. 13, 2000 |
| 6048132 |
Filter underdrain with prefabricated cells |
Apr. 11, 2000 |
| 6048131 |
Subterranean fluid filtering and drainage system |
Apr. 11, 2000 |
| 5988943 |
Liquid distribution device for drainfields |
Nov. 23, 1999 |
| 5975797 |
Subterranean water collection and delivery device and system |
Nov. 2, 1999 |
| 5951203 |
Leaching field construction |
Sep. 14, 1999 |
| 5934828 |
Drainage method and strap draining materials therefor |
Aug. 10, 1999 |
| 5924745 |
Connector assembly for an expandable slotted pipe |
Jul. 20, 1999 |
| 5921711 |
Subsurface fluid distribution apparatus and method |
Jul. 13, 1999 |
| 5916104 |
Box, an insulating system, and a ground drainage system |
Jun. 29, 1999 |
| 5911540 |
Subterranean liquid distribution apparatus |
Jun. 15, 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 |
| 5857297 |
Foundation wall construction |
Jan. 12, 1999 |
| 5852906 |
Internal-wall drain system |
Dec. 29, 1998 |
| 5848856 |
Subsurface fluid drainage and storage systems |
Dec. 15, 1998 |
| 5839844 |
Leaching chamber endplate |
Nov. 24, 1998 |
| 5823711 |
Water drainage and collection system and method of construction thereof |
Oct. 20, 1998 |
| 5816742 |
Permeable conduits for disbursing fluids |
Oct. 6, 1998 |
| 5810509 |
Buried field drainage pipe |
Sep. 22, 1998 |
| 5810510 |
Underground drainage system |
Sep. 22, 1998 |
| 5811164 |
Aeration pipe and method of making same |
Sep. 22, 1998 |
| 5795100 |
Subterranean water collection and delivery device and system |
Aug. 18, 1998 |
| 5785454 |
Protective body/cover to be placed over discharge openings on pipes for the underground supply of water and air |
Jul. 28, 1998 |
| 5771643 |
Concrete slab-wall spacer with water and radon removal features |
Jun. 30, 1998 |
| 5727901 |
Collection tank |
Mar. 17, 1998 |
| 5716163 |
Corrugated leaching chamber with hollow ribbing |
Feb. 10, 1998 |
| 5713696 |
Elasticized geosynthetic panel and geofoam composition |
Feb. 3, 1998 |
| 5704172 |
Rigid foam board and foundation insulation system and method for treating same with insecticide/termiticide |
Jan. 6, 1998 |
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