| Patents for A01G 25 - Watering gardens, fields, sports grounds, or the like (11,921) |
|---|
| 12/15/1981 | US4305549 Valve apparatus and method for controlling flow to an end gun of a pivot irrigation apparatus |
| 12/10/1981 | WO1981003411A1 Method and device for the control of water supply to plants |
| 12/02/1981 | EP0040828A1 Mechanism for irrigation, maintenance and harvesting of farm crops |
| 12/01/1981 | US4303203 Center pivot irrigation system having a pressure sensitive drive apparatus |
| 11/24/1981 | US4301967 Intermittent sprinkler |
| 11/10/1981 | CA1112062A1 Grass sports surfaces and a method for maintaining them |
| 11/03/1981 | US4298166 Portable water drinking fountain |
| 11/03/1981 | CA1111878A1 Irrigation system and fluid dispersion nozzle |
| 10/21/1981 | EP0038219A1 Flow control valve |
| 10/20/1981 | US4295607 Land irrigating system and method |
| 10/13/1981 | US4294470 In-line tube junctions |
| 10/06/1981 | US4293237 Irrigation and drainage apparatus |
| 09/29/1981 | US4291837 Automatic multiple move irrigation line |
| 09/23/1981 | EP0036021A1 Method and apparatus for soil irrigation |
| 09/22/1981 | US4290559 End control, electrical, power drive unit for agricultural sprinkler irrigation systems |
| 09/22/1981 | US4290556 Parallel angularity sensor for center pivot irrigation system |
| 09/01/1981 | CA1108204A1 Automatic sprinkler with hose winder |
| 08/25/1981 | US4285472 Water dropping type irrigation pipe |
| 08/18/1981 | US4284240 Water propelled prime mover in agricultural irrigation systems |
| 08/11/1981 | US4283010 Method and apparatus for irrigation of fields by means of flexible hoses |
| 08/04/1981 | US4281798 Drip or trickle emitter |
| 08/04/1981 | US4281625 Automatic water supply device |
| 07/28/1981 | US4280530 Water-flow-control device |
| 07/23/1981 | WO1981001968A1 End control,electrical,power drive unit for agricultural sprinkler irrigation systems |
| 07/07/1981 | US4277046 Irrigation valve |
| 07/07/1981 | US4277028 Irrigation system and drive unit therefor |
| 07/07/1981 | US4277027 Towable center-pivot irrigation system |
| 07/07/1981 | US4277026 Liquid chemical spraying apparatus movable by a tower-type water irrigation system |
| 07/07/1981 | US4277023 Center pivot irrigation system with corner watering arrangement |
| 07/07/1981 | US4276900 Irrigation device |
| 07/07/1981 | CA1104547A1 Method for controlling the relative humidity in a soil environment and apparatus for accomplishing same |
| 06/30/1981 | US4275837 Mobile apparatus adapted to form a duct for liquid flows, particularly for irrigation purposes |
| 06/30/1981 | US4275761 Duct assembly for rotor-powered mobile sprinkler |
| 06/23/1981 | US4274597 Watering head |
| 06/23/1981 | US4274584 Land irrigation system and method |
| 06/23/1981 | US4274583 Moisture and pressure responsive irrigation system |
| 06/23/1981 | CA1103724A1 Linear move irrigation system and control therefor |
| 06/23/1981 | CA1103552A1 Distribution device for a fluid such as water |
| 06/16/1981 | US4273286 Conduit for drip irrigation systems |
| 06/09/1981 | US4272023 Telescopic sinking hydrant |
| 06/09/1981 | US4272021 Pipeline drain apparatus |
| 06/02/1981 | US4270697 Impulse-type sinking hydrant |
| 06/02/1981 | US4270573 Controller for fluid flow systems |
| 05/26/1981 | US4269357 Continuous drip irrigation tube |
| 05/26/1981 | US4269329 Plant-watering device |
| 05/19/1981 | US4267972 Pneumatically operated gated irrigation system |
| 05/19/1981 | US4267857 Duct system containing a movable plug body |
| 05/14/1981 | WO1981001229A1 Automatic watering apparatus with axial hose carrier reel and alternating motion |
| 05/13/1981 | EP0028574A1 Automatic-irrigation apparatus with axial hose reel and alternating displacement |
| 05/12/1981 | US4266732 Variable reactance alignment detector and control |
| 05/12/1981 | US4266724 Mobile spraying apparatus with an axial pipe-carrier drum |
| 05/05/1981 | US4265404 Support structure for traveling sprinkler |
| 05/05/1981 | US4265403 Controlled irrigation system for a predetermined area |
| 05/05/1981 | CA1100553A1 Agricultural irrigation apparatus |
| 04/21/1981 | US4262694 Central pivot assembly for a self-propelled, center-pivot irrigation system |
| 04/07/1981 | US4260111 Drip irrigation conduit |
| 04/07/1981 | US4260109 Reel transport alignment system |
| 04/07/1981 | CA1098999A1 Programmable digital irrigation controller |
| 03/17/1981 | US4256133 Watering valve device |
| 03/17/1981 | CA1097706A1 Irrigation pipe coupler |
| 03/11/1981 | EP0024670A2 A self-regulating constant output nozzle for a supply line |
| 03/11/1981 | EP0024622A1 Process and apparatus for manufacturing a flat hose |
| 03/10/1981 | US4254916 Thin wall irrigation emitter tube |
| 03/10/1981 | US4254913 Retractable spray head for irrigation system |
| 03/10/1981 | US4254912 Mobile spraying apparatus for watering cultivated surfaces |
| 03/10/1981 | US4254911 Self-propelled irrigation system |
| 03/10/1981 | US4254791 Flow rate regulator |
| 03/03/1981 | US4253619 Apparatus for handling elongate flexible material |
| 03/03/1981 | US4253606 Automatic sprinkler control |
| 02/24/1981 | US4252275 Guidance system for irrigation sprinkling apparatus |
| 02/10/1981 | US4249698 End gun sequencing apparatus and method |
| 02/10/1981 | CA1095275A1 Irrigation hose |
| 02/03/1981 | US4248382 Spinner type water winch |
| 02/03/1981 | US4248260 Control device for center pivot irrigation units |
| 01/27/1981 | US4247051 Irrigation hose and method for its construction |
| 01/27/1981 | US4246936 Pipe for trickle irrigation |
| 01/27/1981 | US4246921 Fluid-pressure operated pilot valve devices |
| 01/20/1981 | US4246574 Moisture responsive switch |
| 01/20/1981 | CA1094200A1 Alignment control system particularly suited to control traveling irrigation systems |
| 01/13/1981 | US4244555 Self-cleaning valve for regulating the flow of liquid in irrigation systems |
| 01/08/1981 | EP0016010A4 Fluid flow regulating valve and system. |
| 01/07/1981 | EP0021334A1 Apparatus for watering trees and other cultivated garden plants near buildings |
| 01/07/1981 | EP0020558A1 Method and device for automatic irrigation. |
| 12/30/1980 | CA1092629A1 Water dispensing apparatus |
| 12/23/1980 | US4241375 Sequential irrigation control system |
| 12/23/1980 | US4240584 Agricultural vehicle |
| 12/23/1980 | US4240582 Center pivot irrigation system with corner watering arrangement |
| 12/23/1980 | US4240461 Pipe-following irrigation machine |
| 12/23/1980 | CA1091987A1 Moisture indicator |
| 11/25/1980 | US4235561 Subterranean irrigation means and system |
| 11/25/1980 | US4235380 Multiple chamber drip irrigation hose |
| 11/25/1980 | US4235254 Flow operated valve |
| 11/18/1980 | CA1089665A1 Manufacturing and using nitrogen fertilizer solutions on a farm |
| 11/13/1980 | WO1980002358A1 Drip irrigation emitter |
| 11/13/1980 | WO1980002357A1 Method of infiltration irrigation and apparatus therefor |
| 11/12/1980 | EP0018815A1 Drip irrigation emitter |
| 11/11/1980 | US4232826 Liquid sludge disposal |
| 11/11/1980 | US4232707 Controller for fluid flow systems |
| 11/11/1980 | US4232705 Automatic rotary irrigation system |
| 11/11/1980 | CA1089249A2 Manufacturing and using nitrogen fertilizer solutions on a farm |