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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 |
| 5030343 |
Drainage cell |
Jul. 9, 1991 |
| 5017042 |
Fluid directing systems |
May. 21, 1991 |
| 5015123 |
Method and apparatus for installation of drainage field |
May. 14, 1991 |
| 5002427 |
Hydrophobic material used for drainage of culvert |
Mar. 26, 1991 |
| 4995759 |
Drainage tube construction |
Feb. 26, 1991 |
| 4983068 |
Construction material |
Jan. 8, 1991 |
| 4956951 |
Laminated sheet for protecting underground vertical walls |
Sep. 18, 1990 |
| 4950103 |
Corrugated drainage tube |
Aug. 21, 1990 |
| 4943185 |
Combined drainage and waterproofing panel system for subterranean walls |
Jul. 24, 1990 |
| 4934865 |
Catchwater drain, excavating structure and method of construction |
Jun. 19, 1990 |
| 4930272 |
Drain system |
Jun. 5, 1990 |
| 4930934 |
Surface, subsurface, continuous feed moisture maintenance system apparatus and method |
Jun. 5, 1990 |
| 4930936 |
Partial-seepage drainage pipe with mating sleeve |
Jun. 5, 1990 |
| 4928426 |
Trough for soil irrigation and moistening |
May. 29, 1990 |
| 4925342 |
Water management system |
May. 15, 1990 |
| 4923331 |
Composite ground water drainable system |
May. 8, 1990 |
| 4919568 |
System for draining land areas through siphoning from a permeable catch basin |
Apr. 24, 1990 |
| 4917536 |
Fluid storage system |
Apr. 17, 1990 |
| 4913596 |
Athletic field construction |
Apr. 3, 1990 |
| 4909665 |
Fabric-covered structure |
Mar. 20, 1990 |
| 4907385 |
Drainage apparatus for concrete block walls |
Mar. 13, 1990 |
| 4904113 |
Highway edgedrain |
Feb. 27, 1990 |
| 4904112 |
Underground irrigation system |
Feb. 27, 1990 |
| 4900010 |
Athletic field and playground |
Feb. 13, 1990 |
| 4880333 |
Subterranean fluid filtering and drainage system |
Nov. 14, 1989 |
| 4840515 |
Subterranean drain |
Jun. 20, 1989 |
| 4832526 |
Underground watering system |
May. 23, 1989 |
| 4820080 |
Process for the construction of a drain system |
Apr. 11, 1989 |
| 4815892 |
Drainage material and drainage core for a drainage system |
Mar. 28, 1989 |
| 4799822 |
Profile elements, particularly for supply and/or removal of substances from environmental and/or flow material |
Jan. 24, 1989 |
| 4756643 |
Apparatus for placement of lateral drain lines onto a main drainage line for prefabricated composite drainage structures |
Jul. 12, 1988 |
| 4749306 |
Formed corrugated plastic net for drainage applications |
Jun. 7, 1988 |
| 4745716 |
Structural water control |
May. 24, 1988 |
| 4740104 |
Underground irrigation or watering of soil |
Apr. 26, 1988 |
| 4730953 |
Insulated waterproof drainage material |
Mar. 15, 1988 |
| 4720209 |
Drywell structure |
Jan. 19, 1988 |
| 4714376 |
Hillslope landslide stability drain |
Dec. 22, 1987 |
| 4704048 |
Subterranean drainage |
Nov. 3, 1987 |
| 4679963 |
Playground construction |
Jul. 14, 1987 |
| 4650367 |
Internally reinforced extruded plastic pipe |
Mar. 17, 1987 |
| 4639165 |
Drainage tube |
Jan. 27, 1987 |
| 4626129 |
Sub-soil drainage piping |
Dec. 2, 1986 |
| 4622138 |
Vertical drain |
Nov. 11, 1986 |
| 4616055 |
Porous irrigation pipe and method |
Oct. 7, 1986 |
| 4615642 |
Variable porosity irrigation pipe |
Oct. 7, 1986 |
| 4577998 |
Production of PVC irrigation pipe and the pipe so produced |
Mar. 25, 1986 |
| 4574541 |
Foundation-drainage panel |
Mar. 11, 1986 |
| 4572700 |
Elongated bendable drainage mat |
Feb. 25, 1986 |
| 4534143 |
System for controlling the moisture in the subsurface soil surrounding a building |
Aug. 13, 1985 |
| 4523613 |
Multi-layered corrugated conduit with "black-eye" like apertures |
Jun. 18, 1985 |
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