초록 ▼

An elongated fluid distributing hose for use in an irrigation system for plants, vegetables, and the like. The hose incorporates a particular arrangement of a main supply channel for gross water movement, and a water distributing network for fine water movement. The major water pressure reduction ta

An elongated fluid distributing hose for use in an irrigation system for plants, vegetables, and the like. The hose incorporates a particular arrangement of a main supply channel for gross water movement, and a water distributing network for fine water movement. The major water pressure reduction takes place in the water distributing network made up of a series of first, second, and third fluid-restricting passages and is eventually released to the exterior of the hose through a series of discharge fluid-passing openings or outlet stations. A novel method and machine are employed to manufacture the hose embodying the teachings of the subject invention.

대표청구항 ▼

Apparatus for manufacturing an elongated fluid-distributing hose made from an elongated plastic film and at least one plastic bead, said apparatus comprising: means for moving the film in a desired direction that is essentially parallel to the longitudinal axis of the film; means for orienting the f

Apparatus for manufacturing an elongated fluid-distributing hose made from an elongated plastic film and at least one plastic bead, said apparatus comprising: means for moving the film in a desired direction that is essentially parallel to the longitudinal axis of the film; means for orienting the film to expose one of the two surfaces of the film along one of the longitudinal margins of the film; extrusion nozzle means for extruding the at least one plastic bead, said nozzle means oriented relative to said one surface of the film so that said bead is disposed on said one surface essentially parallel to the longitudinal axis of the film; molding means for periodically creating a permanent depression in said at least one bead; folding means for folding the film about its longitudinal axis so that the other of the two surfaces of the film along the other of the longitudinal margins of the film comes into contact with said at least one bead; and means for securing the other margin to said at least one bead.