Storm drain grate and filter apparatus and method
AssigneeFrog Creek Partners, LLC
InventorsBrian Deurloo, Thomas James Stypula
Life of this patent
Estimating the term…
Abstract
A storm water capture and filtration system may secure in a catch basin or other area subject to flows of water from streets, channels, and the like as a result of run off from storms. A filter system may include a capture portion including attachment mechanisms, a funnel, various supports, and a filter hanger designed and calculated to capture all water entering a storm water inlet and directing it toward a bag filter. A gap is provided between a funnel and filter hanger in order to provide accommodation for overflow, while an anti-backflow skirt on the filter bag resists flushing of captured pollution out of the bag in overflow condition.
Claims11
An apparatus comprising:
- a structure capable of receiving a flow of waste and capturing solids from the flow, by directing the flow as runoff through a filter bag capable of filtering out solids swept along with the runoff;
- the filter bag, wherein the solids comprise sediment more dense than the runoff and debris less dense than the runoff;
- the filter bag formed to have an upper portion and lower portion, the lower portion formed of a filter medium capable of collecting the sediment while passing water therethrough, and the upper portion comprising a magnet disposed adjacent a rim of the filter bag and a backflow preventer formed of a flexible material extending radially inward from the filter bag and capable of directing the debris back into an interior of the bag below the backflow preventer while passing the runoff out of the filter bag through a sphincter bounding an interior edge of the backflow preventer.
An apparatus comprising:
- a structure capable of receiving a flow of waste and capturing solids from the flow, by directing the flow as runoff through a filter bag capable of filtering out solids swept along with the runoff;
- the filter bag, wherein the solids comprise sediment more dense than the runoff and debris less dense than the runoff;
- the filter bag formed to have an upper portion and lower portion, the lower portion formed of a filter medium capable of collecting the sediment while passing water therethrough, and the upper portion comprising a magnet disposed adjacent a rim of the filter bag and a backflow preventer formed of a flexible material extending radially inward from the filter bag and capable of directing the debris back into an interior of the bag below the backflow preventer while passing the runoff out of the filter bag through a sphincter bounding an interior edge of the backflow preventer, wherein the backflow preventer operates as a net, a flexible lattice defining spaces between strands capable of changing vertical and horizontal dimensions of the spaces in response to forces of the runoff.
Dependencies are inferred from the claim text.