Storm drain grate and filter apparatus and method
AssigneeFrog Creek Partners, LLC
InventorsBrian Robert Deurloo, Thomas James Stypula
Life of this patent
Estimating the term…
Abstract
A stormwater capture and filtration 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 stormwater inlet and directing it toward a bag filter. An adjustable overflow 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. Components of the filtration system may be adjustable, for example, an adjustable frame, an adjustable funnel, an adjustable hanger, and the like.
Claims20
An apparatus comprising:
- a filter system capable of receiving a flow mixture of water and debris, wherein the filter system comprises an adjustable frame connected to a catch basin and capable of adjustably fitting into the catch basin, a hanger suspended from the adjustable frame, and a filter bag removably suspended within the hanger;
- and
- the filter bag formed to have an upper portion and lower portion, the lower portion formed of a filter medium capable of collecting the debris while passing water therethrough.
An apparatus comprising:
- a filter system capable of receiving a flow mixture of water and debris, wherein the filter system comprises a hanger operably connected to a catch basin, at least one duct connected to the hanger, and a filter bag removably suspended within the hanger;
- and
- the filter bag formed to have an upper portion and lower portion, the lower portion formed of a filter medium capable of collecting the debris while passing water therethrough, and the upper portion comprising a backflow preventer formed of a flexible material extending radially inward from the filter bag and capable of directing the debris through a sphincter bounding an inner circumference of the backflow preventer and into an interior of the filter bag below the backflow preventer.
An apparatus comprising:
- a filter system capable of receiving a flow mixture of water and debris, wherein the filter system comprises an adjustable, fanned frame capable of adjustably fitting onto the end of a pipe, a clamshell hanger operably and pivotally connected to the fanned frame, and a filter bag removably suspended within the clamshell hanger;
- and
- the filter bag formed to have an upper portion and lower portion, the lower portion formed of a filter medium capable of collecting the debris while passing water therethrough, and the upper portion comprising a backflow preventer formed of a flexible material extending radially inward from the filter bag and capable of directing the debris through a sphincter bounding an inner circumference of the backflow preventer and into an interior of the filter bag below the backflow preventer.
Dependencies are inferred from the claim text.