IP Library Granted Patent US 8,100,183
Granted Patent B2
US 8,100,183 · App. 12/441,720 · Granted Jan 24, 2012

Reinforced polymeric siphon tubes

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Quick Facts
Patent No.
US 8,100,183
App. No.
12/441,720
Granted
Jan 24, 2012
Kind
B2
Abstract

A siphon tube having a polymeric material into which at least one continuous reinforcing agent is embedded, and wherein the at least one reinforcing agent runs substantially the length of the siphon tube. The polymer material can be one or more polymers selected from one or more high density polyethylenes, one or more polyamides, and one or more fluoropolymers.

Claims (6)

1. An extruded siphon tube consisting essentially of an extruded polymeric material and at least two continuous reinforcing agents selected from the group consisting of monofilament fiber, multifilament fiber, and metal wire; embedded therein; and wherein the at least two reinforcing agents run substantially the length of the siphon tube and are positioned such that they form two clusters wherein each cluster is contained within an arc of the circumference of the cross-section of the tube that is no greater than about than about 30° and that the centers of each arc are at points approximately 180° from each other along the circumference.

2. The siphon tube of claim 1 , wherein the extruded polymeric material comprises one or more polymers selected from the group consisting of high density polyethylenes, polyamides, and fluoropolymers.

3. The tube of claim 1 , wherein the at least two continuous reinforcing agents are situated opposite or roughly opposite each other, and are parallel or roughly parallel to each other.

4. The tube of claim 1 , wherein a surface of at least one of the reinforcing agents has been treated to promote adhesion between the surface and the polymeric material.

5. The tube of claim 4 , wherein the surface of at least one of the reinforcing agents has been treated by at least one process selected from the group consisting of corona discharge and physical roughening.

6. A method of removing liquids from a natural gas well, comprising the steps of introducing into the well the extruded siphon tube of claim 1 , and drawing the liquids out of the well and to the surface through the extruded siphon tube.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 26, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT POLYMERS, INC.
Reel/Frame 049590/0650 →