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US 11,834,821 B1Granted
Water quality unit for flow-through manhole
AssigneeS & M Precast, Inc.
InventorRaymond L. Graf
Life of this patent
Estimating the term…
Abstract
A drain system for water quality. The drain system may include one or more baffles. The one or more baffles may be arcuate in shape. The one or more baffles may include one or more openings therethrough. The one or more baffles may be offset in elevation. The one or more baffles may include one or more flanges projecting therefrom. The one or more baffles may be implemented in a flow-through manhole application.
Claims23
A drain system having a flow direction comprising:
- a manhole including at least one inlet and at least one outlet positioned downstream from the at least one inlet, and wherein the manhole includes a bottom wall;
- a first arcuate baffle having an upper edge and a lower edge and opposing side walls interconnecting the upper edge and the lower edge, and a convex side upstream of a concave side;
- a second arcuate baffle spaced downstream of the first arcuate baffle, wherein the second arcuate baffle includes an upper edge and a lower edge and opposing side walls interconnecting the upper edge and the lower edge, and a concave side upstream of a convex side;
- and
- wherein at least one of the first arcuate baffle and/or the second arcuate baffle includes one or more openings extending through both the concave side and the convex side, respectively.
2 more elements
A drain system having a flow direction comprising:
- a manhole including at least one inlet and at least one outlet positioned downstream from the at least one inlet, and wherein the manhole includes a bottom wall and an opposing top wall;
- a first arcuate baffle having an upper edge and a lower edge and opposing side walls interconnecting the upper edge and the lower edge, and a convex side upstream of a concave side;
- a second arcuate baffle spaced downstream of the first arcuate baffle, wherein the second arcuate baffle includes an upper edge and a lower edge and opposing side walls interconnecting the upper edge and the lower edge, and a concave side upstream of a convex side;
- and
- wherein the upper edge of at least one of the first arcuate baffle and/or the second arcuate baffle is spaced from the top wall of the manhole.
2 more elements
A drain system having a flow direction comprising:
- a first arcuate baffle having a concave side, wherein the first arcuate baffle includes one or more first openings;
- a second arcuate baffle spaced downstream of the first arcuate baffle, wherein the second arcuate baffle includes a concave side, and wherein the second arcuate baffle includes one or more second openings;
- and
- wherein the concave sides of each of the first arcuate baffle and the second arcuate baffle face towards each other to define at least one cavity therebetween.
1 more element
Dependencies are inferred from the claim text.