Subterranean drainage device
OwnerAlton F. Parkerinventor
Life of this patent
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Abstract
A water-impervious, non-biodegradable, unitary drainage device with multi-directional rollup capability. The invention features a monolithic “sandwich” construction consisting of planar top and base sheets, set apart by an array of supports that are disposed between and integrally joined to the sheets. Selective and off-set through-cuts, in the top and bottom sheets, impart to the invention the multi-dimensional rollup capability. Rods, optionally hollow, are used as splines to connect two or more of the devices, so that their internal drain channels are in an efficient confluent alignment.
Claims20
A multi-channeled, drain device for conveying liquid, passing into it from a first locale to another locale and comprising:
- first and second sheets of a planar, water-impervious and flexible material;
- an array of separated support members discretely and connectedly interposed the first and the second sheets, the separated members effecting channels therebetween;
- and,
- a first set of two or more parallel linear slices passing through the first sheet and any intervening support members and a second set of two or more parallel linear slices passing through the second sheet and any intervening support members, wherein the first and the second sets of slices are in parallel and off-set, non-superposed patterns with respect to each other.
A monolithic, multi-channeled drainage apparatus constructed of a firm, flexible, non-biodegradable material and comprising:
- a first planar member and a second planar member;
- said first and said second members set apart and connected by a row-column matrix of post elements effecting multiple fluid channels within the apparatus, the apparatus further featuring a first set of parallel, elongated cuts through the first member, the cuts situated parallel to rows of the matrix and a similar set of cuts in the second member, wherein the first set of cuts is in an off-set, non-superposed relationship with said similar set of cuts.
A monolithic drainage apparatus constructed of a firm, flexible, non-biodegradable material having multiple drain channels therein and comprising:
- a first planar member and a second planar member;
- said first and said second members set apart and connected by an array of parallel partitions and featuring a first set of parallel, linear cuts through the first member, the cuts situated transverse to and through the partitions;
- and,
- a similar set of cuts in and through the second member and intervening partitions, and wherein the similar set of cuts is in an off-set, non-superposed relationship with the first set of cuts.
Dependencies are inferred from the claim text.