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US 8,011,643 B2Granted
Diffuser assembly with buoyancy vessel
AssigneeEnvironmental Dynamics, Inc.
InventorCharles E. Tharp
Life of this patent
Estimating the term…
Abstract
A diffuser assembly with a buoyancy vessel and a chamber for buoyantly raising the diffuser assembly for maintenance work. The diffuser assembly has a support structure, diffusers connected to the frame, and a buoyancy vessel positioned on the frame, capable of alternating between a state of buoyancy or ballast.
Claims7
A diffuser module for use in aerating wastewater, said diffuser module comprising:
- a support structure;
- a diffuser assembly mounted to the support structure and having, a plurality of diffusers for applying air to the wastewater;
- at least one buoyancy vessel mounted to the support structure and having a flotation chamber, said vessel being positioned such that a portion of the chamber is positioned above a center of mass of the support structure and diffuser assembly;
- and
- a flow control opening in flow communication with the chamber and operable to selectively seal the chamber from gas discharge and selectively permit discharge of liquid from the chamber when gas is applied thereto.
2 more elements
Dependencies are inferred from the claim text.