System, method and apparatus for providing anodic corrosion protection for galvanized irrigation pipes

Patent metadata

Field	Value
Publication number	US-12012659-B2
Application number	US-202117177674-A
Country	US
Kind code	B2
Filing date	Feb 17, 2021
Priority date	Feb 28, 2020
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

The present invention provides a sacrificial anodic plug for insertion within an irrigation span to provide anodic corrosion protection. According to a preferred embodiment, the anodic plug of the present invention includes a protective cap connected to a securing bushing, and an anodic coupler which extends into the interior of the irrigation span. Preferably, the securing bushing includes non-conductive threads for mating with the threads of a sprinkler outlet and for electrically isolating the anodic coupler from the protective cap. According to further preferred embodiments, the anodic coupler is formed of magnesium and extends down away from the protective cap and terminates in an anodic base. According to a further preferred embodiment, the protective cap may include a wear indicator indicating the amount of anodic material remaining in the central anodic coupler and anodic base.

First claim

I claim:

1. An apparatus for providing anodic corrosion protection for a galvanized irrigation pipe having an exterior surface, wherein the apparatus comprises:
a protective cap, wherein the protective cap comprises a main body having a first perimeter; wherein the protective cap comprises a gripping surface; wherein the gripping surface extends around the first perimeter of the main body;
a securing bushing;
a solar panel, wherein the solar panel is integrated within the main body of the protective cap; wherein the solar panel is within the first perimeter of the main body;
a first conductive wire, wherein the first conductive wire comprises a first end and a second end; wherein the first conductive wire is electrically connected at the first end to the solar panel;
a conductive patch, wherein the conductive patch is electrically connected to the second end of the first conductive wire; wherein the conductive patch is electrically connected to the galvanized irrigation pipe; wherein the conductive patch comprises a planar surface extending away from the first conductive wire in a direction parallel to the exterior surface of the galvanized irrigation pipe;
a first anodic coupler, wherein the first anodic coupler extends down away from the protective cap and terminates in a first anodic base;
a second anodic coupler, wherein the second anodic coupler extends down away from the protective cap and terminates in a second anodic base.

2. The apparatus of claim 1 , wherein the apparatus further comprises:
a spring element, wherein the spring element is connected at a first side to the first anodic coupler; wherein the spring element is connected at a second side to the second anodic coupler; wherein the spring element is deformable between a first compressed state and a second uncompressed state;
wherein the first anodic coupler and the second anodic coupler are a first lateral distance apart when the spring element is in the first compressed state; wherein the first anodic coupler and the second anodic coupler are a second lateral distance apart when the spring element is in the second uncompressed state; wherein the first lateral distance is smaller than the second lateral distance.

Assignees

• Valmont Industries

Inventors

• Toman Benjamin J

Classifications

• C23F2213/32

  Pipes · CPC title

• C23F13/18

  Means for supporting electrodes · CPC title

• C23F13/06

  Constructional parts, or assemblies of cathodic-protection apparatus · CPC title

• C23F13/005 Primary

  Anodic protection · CPC title

• C23F13/22 Primary

  Monitoring arrangements therefor · CPC title