US 9,809,941 B1
Flared modular drainage system with improved surface area
James M. Donlin, South Windsor, CT (US)
Filed by James M. Donlin, South Windsor, CT (US)
Filed on Oct. 19, 2015, as Appl. No. 14/886,492.
Claims priority of provisional application 62/065,116, filed on Oct. 17, 2014.
Int. Cl. E02B 11/00 (2006.01); E03F 1/00 (2006.01)
CPC E02B 11/005 (2013.01) [E03F 1/002 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fluid drainage unit for installation in a ground excavation, comprising:
a first channel extending transversely and a second channel extending transversely, the first channel longitudinally spaced from the second channel along the excavation, the first and second channels being concavely arced relative to each other in the same longitudinal direction,
the first channel defined between a front face extending between a top and bottom edge and being arced concavely in the longitudinal direction between a left edge and a right edge and a rear face extending between a top and bottom edge and being arced concavely in the same longitudinal direction relative to the first channel front face between a left edge and a right edge, the front and rear faces of the first channel extending substantially the same distance from their respective top to bottom edges, the left edges of the front and rear faces defining a left face therebetween and the right edges of the front and rear faces defining a right face therebetween, and the rear face defining a first filtration surface;
the second channel defined between a front face that is longitudinally spaced from the first channel rear face and that defines a second filtration surface, and a second channel rear face, both the second channel front face and second channel rear face extending from respective top to respective bottom edges and being arced between respective right and left edges with the respective second channel left edges defining a left face therebetween and the respective second channel right edges defining a right face therebetween, the second channel front face and the second channel rear face being concave in the same longitudinal direction; wherein
the first channel right face is longitudinally spaced from the second channel right face and the first channel left face is longitudinally spaced from the second channel left face without a filtration surface positioned longitudinally between the second channel right face and the first channel, and without a filtration surface positioned longitudinally between the second channel left face and the first channel;
the first channel and second channel are fluidly connected to one another; and
the arc of the first channel extends between its left face and right face and extends along an angle of between approximately 60 degrees and 270 degrees, and the arc of the second channel extends between its left face and right face and extends along an angle of between approximately 60 degrees and 270 degrees.