Patent ID: 9315961
Filing Date: 2016-04-19
CPC Classification: E02B,E02D

Claim Text:
1. A mat for protecting one or more of channels, lake shorelines, stream banks and steep slopes, and for filtering and collecting soil sediment from runoff water, said mat comprising: a tightly woven or extruded, three dimensional corrugated body structure wherein the corrugated body structure comprises sides facing toward a direction of expected water flow and sides facing away from the direction of expected water flow, and a bottom layer secured to a lower side of said corrugated body structure, said corrugated body structure with said bottom layer secured thereto forming a plurality of sediment entrapment chambers that create continuous open areas across a width of the mat that are unobstructed by a filling material and are configured to filter, capture and retain sediment, wherein the corrugated body comprises openings, and further wherein the openings on the sides facing the direction of expected water flow are larger relative to the openings on the sides facing away from the direction of expected water flow, thereby allowing enhanced sediment entry into the plurality of sediment entrapment chambers and entrapment within the plurality of sediment entrapment chambers; and wherein openings in the bottom layer are smaller than openings in the corrugated body structure to provide enhanced erosion control and customized filtration capabilities dependent on soil type as well as to allow uninhibited vegetation growth through the mat.