Water level regulating device for paddy field
AssigneesMitsubishi Plastics, Inc., Sekisui Chemical Co., Ltd., Kabushiki Kaisha Paddy Kenkyusho
InventorsTaisuke Hashimoto, Kiminori Takao, Tsuneo Onodera
Life of this patent
Estimating the term…
Abstract
A paddy field water level regulating device 6 installed between a water pipe buried along a farm road 43 and a farming plot 42, the device consisting of a cylindrical feed and drain basin 60 with a closed bottom, having a farming plot feed and drain port 61 communicating with the farming plot 42; a water inflow and drain section located in the geed and drain basin 60 near the bottom thereof and connected to the water pipe; a drain valve located in the water inflow and drain section; and a height-adjustable water level regulating weir 65 located in and water inflow and drain section.
Claims25
A paddy field water level regulating device installed between a water pipe buried along a farm road and a farming plot, the device comprising:
- a cylindrical feed and drain basin with a closed bottom, having a farming plot feed and drain port communicating with the farming plot;
- a water inflow and drain section located in the feed and drain basin near the bottom thereof and connected to the water pipe;
- a drain valve located in the water inflow and drain section;
- and
- a height-adjustable water level regulating weir located in the water inflow and drain section.
A paddy field water level regulating device installed between a group of pipes, including a watering pipe and a drain pipe which are buried along a farm road, and a farming plot, the device comprising:
- a cylindrical feed and drain basin with a closed bottom, having a farming plot feed and drain port communicating with the farming plot;
- a water inflow section located in the feed and drain basin near the bottom thereof and connected to the watering pipe;
- a feed valve for controlling supply of irrigation water located in the water inflow section;
- a height-adjustable check weir located in the water inflow section;
- a water drain section located in the feed and drain basin near the bottom thereof and connected to the drain pipe;
- a drain valve located in the water drain section;
- and
- a height-adjustable water level regulating weir located in the water drain section.
A paddy field water level regulating device installed between a group of pipes, including a watering pipe and a water level regulating pipe which are buried along a farm road, and a farming plot, the device comprising:
- a cylindrical feed and drain basin with a closed bottom, having a farming plot feed and drain port communicating with the farming plot;
- a water inflow section located in the feed and drain basin near the bottom thereof and connected to the watering pipe;
- a feed valve for controlling supply of irrigation water located in the water inflow section;
- a height-adjustable check weir located in the water inflow section;
- a water level regulating basin connected to the water level regulating pipe;
- a regulating water inflow section located in the water level regulating basin near the bottom thereof and connected to the upstream side of the water level regulating pipe;
- a regulating water outflow section located in the water level regulating basin near the bottom thereof and connected to the downstream side of the water level regulating pipe;
- a drain valve located in the regulating water outflow section;
- a height-adjustable water level regulating weir located in the regulating water outflow section;
- and
- a regulating water communicating section for allowing the feed and drain basin and the water level regulating basin to communicate with each other via regulating water blocking means.
A paddy field water level regulating device installed between a group of pipes, including a watering pipe, a drain pipe and a water level regulating pipe which are buried along a farm road, and a farming plot, the device comprising:
- a cylindrical feed and drain basin with a closed bottom, having a farming plot feed and drain port communicating with the farming plot;
- a water inflow section located in the feed and drain basin near the bottom thereof and connected to the watering pipe;
- a feed valve for controlling supply of irrigation water located in the water inflow section;
- a water drain section located in the feed and drain basin near the bottom thereof and connected to the drain pipe;
- a drain valve located in the water drain section;
- a height-adjustable drainage regulating weir located in the water drain section;
- a water level regulating basin connected to the water level regulating pipe;
- a regulating water inflow section located in the water level regulating basin near the bottom thereof and connected to the upstream side of the water level regulating pipe;
- a regulating water outflow section located in the water level regulating basin near the bottom thereof and connected to the downstream side of the water level regulating pipe;
- a height-adjustable water level regulating weir located in the regulating water outflow section;
- and
- a regulating water communicating section for allowing the feed and drain basin and the water level regulating basin to communicate with each other via regulating water blocking means.
A paddy field water level regulating device installed between a watering pipe buried along a farm road and a farming plot, the device comprising:
- a cylindrical feed and drain basin with a closed bottom, having a farming plot feed and drain port communicating with the farming plot;
- a water inflow section located in the feed and drain basin near the bottom thereof and connected to the upstream side of the watering pipe;
- a water outflow section located in the feed and drain basin near the bottom thereof and connected to the downstream side of the watering pipe;
- a drain valve located in the water outflow section;
- and
- a height-adjustable water level regulating weir located in the water outflow section.
Dependencies are inferred from the claim text.