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US 2006/0133897 A1Published application
Erosion control barrier
OwnerDouglas Allard, Jonathan McDonaldinventors
Life of this patent
Estimating the term…
Abstract
An erosion control roll including an elongate core member defining an interior space, being open at both ends, and having openings along its length, a pervious filter member open at both ends and surrounding the elongate core member; and, an apron disposed on the upstream side of the pervious filter member, said apron running the length of said filter member, and extending a predetermined distance therefrom.
Claims16
An erosion control roll comprising:
- an elongate core member defining an interior space, being open at both ends, and having openings along its length;
- a pervious filter member having an upstream side and a downstream side, open at both said upstream and down stream sides, and surrounding said elongate core member;
- and,
- an apron disposed on said upstream side of said pervious filter member, said apron running the length of said filter member, and extending a predetermined distance therefrom.
1 more element
(canceled)
Dependencies are inferred from the claim text.