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US 2017/0080640 A1Published application
Delivery tube for irrigation and fertilization system and method for manufacturing same
AssigneeResponsive Drip Irrigation, LLC
InventorsJanice K. Gould, David A. Conklin
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Abstract
The invention is directed generally to improvements in irrigation and fertilization assessment and delivery. More specifically, embodiments of the invention provide an improved fluid delivery tube, method to manufacture such tube, and systems that include such tube. The delivery tube is beneficial at least because it minimizes the life cycle cost of a responsive delivery tube.
Claims4
A method for manufacturing a delivery tube, the method comprising:
- preparing a hydrophilic polymer solution;
- coating a portion of a substrate with the hydrophilic polymer solution to produce a responsive substrate;
- drying the responsive substrate;
- and
- welding the responsive substrate to a backer to form the delivery tube, the coating being a surface treatment, the welding not operating on the portion of the substrate coated with the hydrophilic polymer.
2 more elements
Dependencies are inferred from the claim text.