Back to results
US 2007/0166106 A1Published application
Drainage unit with external covering and method for manufacture
AssigneeEZflow L.P.
InventorDennis W. Koerner
Life of this patent
Estimating the term…
Abstract
Drainage units and methods of their manufacture, the drainage units comprising lightweight aggregate held within a sleeve having an exterior surface with at least a portion of exterior surface comprising a barrier material substantially impervious to solids.
Claims57
A method for making a drainage unit comprising the steps of:
- providing a sleeve made from a sleeve material;
- closing a forward end of the sleeve to create at least a partially enclosed space within the sleeve, said sleeve having an exterior;
- feeding an amount of aggregate into the sleeve to substantially fill the space within the sleeve;
- providing a barrier material;
- and
- affixing a predetermined amount of barrier material to the exterior of the sleeve.
3 more elements
A method for making a drainage unit comprising the steps of:
- providing a sleeve made from a sleeve material;
- closing a forward end of a sleeve to create at least a partially enclosed space within the sleeve;
- feeding an amount of aggregate into the sleeve to substantially fill the space within the sleeve, said aggregate and sleeve comprising a drainage unit having an exterior;
- providing a barrier material;
- and
- affixing a predetermined amount of barrier material to the exterior of the drainage unit.
3 more elements
A method for making a drainage unit comprising the steps of:
- providing a sleeve material;
- closing a forward end of the sleeve material to create at least a partially enclosed space, said sleeve material having an exterior;
- and
- feeding an amount of aggregate into the sleeve to substantially fill the space within the sleeve;
- wherein the sleeve comprises a barrier material.
2 more elements
A method for making a drainage unit comprising the steps of:
- providing a first sleeve made from a sleeve material;
- closing a forward end of the first sleeve to create at least a partially enclosed space;
- feeding an amount of aggregate into the first sleeve to substantially fill the space within the first sleeve;
- providing a second sleeve made from a second sleeve material;
- and
- directing the first sleeve into the second sleeve;
- wherein at least one of said first and second sleeves comprises a barrier material.
4 more elements
An apparatus for making a drainage unit comprising:
- a means for closing a first end of a sleeve to create at least a partially enclosed space, said sleeve having an exterior;
- a means for feeding an amount of aggregate into the sleeve to substantially fill the space within the sleeve;
- a means for closing a second end of the sleeve;
- and
- a means for affixing a predetermined amount of barrier material to the exterior of the sleeve.
2 more elements
An apparatus for making a drainage unit comprising:
- a means for closing a forward end of a sleeve to create at least a partially enclosed space;
- and
- a means for feeding an amount of aggregate into the sleeve to substantially fill the space within the sleeve;
- wherein the sleeve comprises an amount of barrier material.
1 more element
An apparatus for making a drainage unit comprising:
- a means for introducing a predetermined length of perforated conduit into the sleeve having a first and second end;
- a means for attaching one end of the conduit to the first end of the sleeve to create at least a partially enclosed space between the conduit and the sleeve;
- a means for feeding an amount of aggregate into the sleeve to substantially fill the space between the conduit and the sleeve;
- a means for attaching the second end of the sleeve to the second end of the conduit to close the sleeve;
- and
- wherein the sleeve comprises an amount of barrier material.
3 more elements
An apparatus for making a drainage unit comprising:
- a means for supplying a first sleeve material having first and second ends;
- a means for introducing a predetermined length of perforated conduit into the first sleeve;
- a means for closing a forward end of the first sleeve material to create at lease a partially enclosed space;
- a means for feeding an amount of lightweight aggregate into the first sleeve to substantially fill the space between the conduit and the first sleeve;
- a means for directing the first sleeve into a second sleeve;
- and
- wherein at least one of the first and the second sleeves comprises an amount of barrier material.
4 more elements
The apparatus of claim 29, wherein the first sleeve is directed into the second sleeve before feeding an amount of lightweight aggregate into the first sleeve.
A drainage unit comprising:
- a longitudinally extending perforated sleeve having an exterior;
- an amount of lightweight aggregate contained within the sleeve;
- a barrier, said barrier having an outer surface and an inner surface;
- and
- wherein said barrier inner surface is affixed to the exterior of the sleeve, and said barrier covers a circumferential exterior portion of the sleeve.
2 more elements
A drainage unit comprising:
- a perforated sleeve having an exterior surface;
- an amount of lightweight aggregate contained within the sleeve, said aggregate having an exterior surface;
- a barrier substantially impervious to solids and having a flow through rate for liquids, said barrier having an outer surface and an inner surface;
- wherein at least a portion of said barrier inner surface is affixed to at least a portion of a surface selected from the group consisting of:
- the sleeve exterior surface, the aggregate exterior surface, and combinations thereof;
- and
- wherein said barrier comprises at least a portion of a sleeve exterior surface of the drainage unit.
4 more elements
A drainage unit comprising:
- a longitudinally extending perforated sleeve having an exterior;
- and
- an amount of lightweight aggregate contained within the sleeve, said sleeve comprising an amount of barrier material affixed to at least a portion of the sleeve exterior.
A drainage unit comprising:
- a longitudinally extending first sleeve comprising an amount of lightweight aggregate, and a pre-selected length of perforated conduit, with said aggregate located between the conduit and the first sleeve;
- and
- a second sleeve dimensioned to receive the first sleeve;
- wherein at least one of said first and second sleeves comprises an amount of barrier material.
1 more element
A drainage system comprising:
- a plurality of drainage units, each unit comprising a longitudinally extending perforated sleeve having an exterior;
- and an amount of lightweight aggregate contained within the sleeve;
- and
- wherein at least one unit comprises a barrier material on the exterior of the sleeve.
1 more element
Dependencies are inferred from the claim text.