Subterranean drain
AssigneeMirafi, Inc.
InventorJames S. Freese
Life of this patent
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Abstract
A subterranean drainage unit for protecting a structure by intercepting subsurface fluid flows, comprising a sheet base member having parallel first and second planar surfaces, regularly spaced discrete frusto-conical members projecting from the first planar surface creating intersecting channels to allow for lateral and vertical uninterrupted flow of fluid, the second planar surface being constructed and arranged to cohesively adhere to the surface of the structure being protected and a filter media supported by the projections to maintain a substantially rigid surface which is non-interfering with the flow of fluid within the intersecting channels.
Claims9
A subterranean drainage unit for protecting a structure by intercepting subsurface fluid flows, comprising a sheet base member having parallel first and second planar surfaces, regularly spaced discrete frusto-conical members projecting from said first planar surface members intersecting channels to allow for lateral and vertical uninterrupted flow of fluid, said second planar surface being constructed and arranged to cohesively adhere to the surface of said structure being protected and a filter media supported by said projections to maintain a substantially rigid surface which is non-interfering with the flow of fluid within said intersecting channels.
Dependencies are inferred from the claim text.