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Class Information
Number: 405/36
Name: Hydraulic and earth engineering > Drainage or irrigation
Description: Method or apparatus including a step or means for either (a) collecting and removing surplus water from the soil, (b) applying water to the soil for agricultural purposes, or (c) the installation of apparatus for collecting and removing water from the soil or applying water to the soil.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4697952 |
Underground irrigation apparatus and method for using same |
Oct. 6, 1987 |
| 4687372 |
Toxic waste drain system and method |
Aug. 18, 1987 |
| 4679963 |
Playground construction |
Jul. 14, 1987 |
| 4676693 |
Method of confirming position of drain material left and apparatus for confirming same in drain engineering method |
Jun. 30, 1987 |
| 4673128 |
Method and system for furrow irrigation |
Jun. 16, 1987 |
| 4659251 |
Liquid spill container and method of making and installing same |
Apr. 21, 1987 |
| 4637755 |
Apparatus for burying conduit |
Jan. 20, 1987 |
| 4626129 |
Sub-soil drainage piping |
Dec. 2, 1986 |
| 4622138 |
Vertical drain |
Nov. 11, 1986 |
| 4620817 |
Underground discharge for downspouts and sump pumps |
Nov. 4, 1986 |
| 4618004 |
Method and apparatus for building borders |
Oct. 21, 1986 |
| 4615642 |
Variable porosity irrigation pipe |
Oct. 7, 1986 |
| 4611950 |
Method and apparatus for removing contaminants from soil |
Sep. 16, 1986 |
| 4607981 |
Method for constructing a screen that obstructs the flow of subsoil water |
Aug. 26, 1986 |
| 4592676 |
Arrangement for damming water and also for draining away the volume of water above a certain level in a vegetation-bearing stratum |
Jun. 3, 1986 |
| 4589798 |
Drainage system |
May. 20, 1986 |
| 4583880 |
Cultivation plant and use thereof |
Apr. 22, 1986 |
| 4577998 |
Production of PVC irrigation pipe and the pipe so produced |
Mar. 25, 1986 |
| 4577997 |
Irrigation pipe |
Mar. 25, 1986 |
| 4577802 |
Method and system for furrow irrigation |
Mar. 25, 1986 |
| 4572706 |
Desalting irrigation and its apparatus |
Feb. 25, 1986 |
| 4564310 |
Resilient paving composition for playfields sports fields and recreation areas |
Jan. 14, 1986 |
| 4561801 |
Method and apparatus for inhibiting erosion |
Dec. 31, 1985 |
| 4553876 |
Method and apparatus for laying drains in frost-susceptible ground, and drains laid in such ground |
Nov. 19, 1985 |
| 4537527 |
Means for providing a vertical drain in soil |
Aug. 27, 1985 |
| 4534143 |
System for controlling the moisture in the subsurface soil surrounding a building |
Aug. 13, 1985 |
| 4527927 |
Water harvesting and storage system |
Jul. 9, 1985 |
| 4522533 |
Flow restrictor |
Jun. 11, 1985 |
| 4506741 |
Levee gate cutter |
Mar. 26, 1985 |
| 4497333 |
Sequencing valve and irrigation system |
Feb. 5, 1985 |
| 4488563 |
Filter plug |
Dec. 18, 1984 |
| 4487690 |
Sump or flush installable roof drain |
Dec. 11, 1984 |
| 4487524 |
Method and apparatus of forming sand piles for improving a soft ground |
Dec. 11, 1984 |
| 4486986 |
Foundation drain system |
Dec. 11, 1984 |
| 4484835 |
Method and apparatus for installing ground-water barrier |
Nov. 27, 1984 |
| 4483641 |
Waste disposal landfill |
Nov. 20, 1984 |
| 4475844 |
Method and apparatus for restricting local variations in ground level in the vicinity of surface water drains and manholes |
Oct. 9, 1984 |
| 4474505 |
Draining, irrigating and dispersing mass |
Oct. 2, 1984 |
| 4467962 |
Land irrigation system and method |
Aug. 28, 1984 |
| 4464079 |
Irrigation system |
Aug. 7, 1984 |
| 4462713 |
Method for mining and reclaiming land |
Jul. 31, 1984 |
| 4461598 |
Machine for installing drip irrigation conduit |
Jul. 24, 1984 |
| 4459177 |
Ground moisture transfer system |
Jul. 10, 1984 |
| 4457646 |
Impoundment and diversion systems for preventing or mitigating flooding |
Jul. 3, 1984 |
| 4455105 |
Procedure and means for creating a vertical drain |
Jun. 19, 1984 |
| 4452548 |
Pond with filtered water |
Jun. 5, 1984 |
| 4449848 |
Means for providing a vertical drain in soil |
May. 22, 1984 |
| 4447173 |
Apparatus for burying drip irrigation tubing |
May. 8, 1984 |
| 4431338 |
Irrigation monitoring system |
Feb. 14, 1984 |
| 4430020 |
Drip irrigation hose |
Feb. 7, 1984 |
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