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US 10,532,940 B2Granted
Aeration discs and methods for using same
AssigneeEvoqua Water Technologies LLC
InventorsGeorge W. Smith, Mark F. Pamperin, Charles S. Applegate, Christopher K. Waul, Marc E. Roehl, Michael L. Doyle
Life of this patent
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Abstract
Aeration discs used in water treatment and methods of using same are disclosed. According to one or more embodiments, an aeration disc may comprise projections and depressions located on at least one of its surfaces. The aeration discs may be incorporated into aeration devices and water treatment systems.
Claims17
An aeration disc, comprising:
- a drive shaft opening;
- a plurality of projections on a disc surface, each of the plurality of projections defining a recess in a leading portion to facilitate cup-like operation and comprising a tapered trailing portion, the plurality of projections being arranged in a series of clusters on the disc surface in a spoke pattern emanating from the drive shaft opening with each cluster comprising a plurality of rows of projections positioned in a parallel manner;
- and
- a plurality of depressions on the disc surface, each of the plurality of depressions comprising a tapered leading portion and a trailing portion,
- wherein each depression is positioned contiguous to the leading portion of one of the plurality of projections to increase an effective projection height, and wherein each depression and its corresponding projection forms a void volume in which liquid is entrained during operation.
2 more elements
Dependencies are inferred from the claim text.