Multiple chamber drip irrigation hose

Claim 2

A multichamber drip irrigation hose for distributing irrigation water and the like in controlled amounts, comprising: a primary and at least one secondary tube of flexible, water-impermeable material and joined at a common wall; said common wall having a series of first holes placing the interior of said primary tube in communication with the interior of said secondary tube; said secondary tube having a series of second holes leading from the interior of said secondary tube to the exterior; and a smooth, flexible, filamentary line of a material having a density approximately that of water and positioned within said secondary tube and forming a restricted path for water flowing from a first hole to a second hole, said line being of substantially smaller diameter than said secondary tube for movement of said line radially in said secondary tube.

Claim 3

The hose of claim 1 wherein the first holes are non-restrictive, being sufficiently large so as to provide substantially no pressure drop between said primary and secondary tubes.

Claim 4

The hose of claim 1 wherein the second holes are non-restrictive, being sufficiently large so as to provide substantially no pressure drop between said secondary tube and the exterior.

Claim 5

The hose of claim 1 wherein two secondary tubes are joined to the primary tube by a first and second common wall; said first and second common walls each having a series of first holes placing the interior of said primary tube in communication with the interior of each of said secondary tubes; said secondary tubes each having a series of second holes leading from the interior of said secondary tube to the exterior; and a smooth, flexible, filamentary line of a material having a density approximately that of water and positioned within each of said secondary tubes and forming a restricted path for water flowing from a first hole to a second hole, each of said lines being of substantially smaller diameter than the corresponding secondary tube for movement of the line radially in the tube.

Claim 6

The hose of claim 1 wherein the holes of the first and second series have the same spacing, and the holes of said second series are offset from the holes of said first series.

Claim 7

The hose of claim 1 including: a plurality of barriers within said secondary tube forming a plurality of chambers with each chamber having a first hole and a second hole; and with said first hole of said chamber located adjacent one barrier and said second hole of said chamber located adjacent the next barrier.

Claim 8

The hose of claim 6 wherein said barriers are formed by sealing a portion of said secondary tube to itself.

Claim 9

A multichamber drip irrigation hose for distributing irrigation water and the like in controlled amounts, comprising: a primary and at least one secondary tube of flexible, water-impermeable material and joined at a first common wall; at least one tertiary tube of flexible, water-impermeable material attached to said secondary tube at a second common wall; said first common wall having a series of first holes placing the interior of said primary tube in communication with the interior of said secondary tube; said secondary tube having a series of second holes placing the interior of said secondary tube in communication with the interior of said tertiary tube; said tertiary tube having a series of third holes leading from the interior of said tertiary tube to the exterior; a first smooth, flexible, filamentary line of a material having a density approximately that of water and positioned within said secondary tube and forming a restricted path for water flowing from a first hole to a second hole; and a second smooth, flexible, filamentary line of a material having a density approximately that of water and postioned within said tertiary tube and forming a restricted path for water flowing from a second hole to a third hole; each of said lines being of substantially smaller diameter than its corresponding tube for movement of the line radially in the tube.

Claim 10

A multichamber drip irrigation hose for distributing irrigation water and the like in controlled amounts, comprising: a primary and at least one secondary tube of flexible, water-impermeable material and joined at a first common wall; at least one tertiary tube of flexible, water-impermeable material attached to said secondary tube at a second common wall; said first common wall having a series of first holes placing the interior of said primary tube in communication with the interior of said secondary tube; said secondary tube having a series of second holes placing the interior of said secondary tube in communication with the interior of said tertiary tube; said tertiary tube having a series of third holes leading from the interior of said tertiary tube to the exterior; a first smooth, flexible, filamentary line of a material having a density approximately that of water and positioned within said secondary tube and forming a restricted path for water flowing from a first hole to a second hole; and a second smooth, flexible, filamentary line of a material having a density approximately that of water and postioned within said tertiary tube and forming a restricted path for water flowing from a second hole to a third hole; each of said lines being of substantially smaller diameter than its corresponding tube for movement of the line radially in the tube.