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US 6,582,156 B1Granted
Level control device for wetlands wastewater treatment facilities
OwnerDavid A. Flowersinventor
Life of this patent
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Abstract
A level control device for constructed wetlands which is suitable for use in cold climates. The device comprises an outer casing with an inner diameter at least about 4 inches and less than about 18 inches with an overflow weir, in fluid communication with the constructed wetland, located inside the outer casing.
Claims12
A device for controlling the level of a constructed wetland wastewater treatment system, the device comprising:
- A) an outer casing with an open top, the outer casing having an inner diameter at least about 4 inches and less than about 18 inches;
- B) an overflow weir in fluid communication with the constructed wetlands wherein the overflow weir is located within the outer casing;
- C) a cap removably attached in a closing position over the open top of the outer casing;
- and
- D) an outlet in fluid communication with the overflow weir wherein the outlet provides a fluid flow path from the outer casing.
2 more elements
An improved device for controlling the level of a constructed wetland wastewater treatment system, the device comprising:
- A) an outer casing with an open top, the outer casing having an outer surface and an inner surface and an inner diameter at least about 4 inches and less than about 18 inches;
- B) an overflow weir comprising an overflow pipe in fluid communication with the constructed wetland, wherein the overflow pipe is located within the outer casing and has an outer diameter at least about 2 inches less than the inner diameter of the outer casing;
- C) a cap removably attached in a closing position over the open top of the outer casing;
- and
- D) an outlet in fluid communication with the overflow weir wherein the outlet extends through the outer casing from the inner surface to the outer surface providing a fluid flow path through the outer casing.
2 more elements
Dependencies are inferred from the claim text.