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US 10,852,225 B2Granted
Corrosion indicator for use with a piping system, and a piping system using the corrosion indicator
AssigneeCrane Resistoflex
InventorsDavid Yanik, Bradley Allen
Life of this patent
Estimating the term…
Abstract
Methods and devices for detecting and indicating corrosion and rate of progression of corrosion in piping such as piping having non-metallic liners.
Claims19
A pipe corrosion indicating system, comprising:
- a metal pipe having an inner surface and an outer surface and having a thickness extending between the inner and the outer surfaces;
- a non-metallic liner in the met pipe, contacting the inner surface of the metal pipe;
- at least one corrosion indicator, wherein the at least one corrosion indicator comprises:
- a cavity formed in the outer surface of the metal pipe;
- and
- a sensor in the cavity;
- and
- a vent that extends through the thickness of the metal pipe, wherein the at least one corrosion indicator is located within a distance of six inches from the vent.
5 more elements
A pipe corrosion indicating system, comprising:
- a metal pipe having an inner surface and an outer surface and having a thickness extending between the inner and the outer surfaces;
- a non-metallic liner in the met pipe, contacting the inner surface of the metal pipe;
- a corrosion indicator, wherein the corrosion indicator comprises:
- a cavity formed in the outer surface of the metal pipe;
- first and second electrical conductors each having a first end in the cavity and an exterior second end for connection to a voltage source;
- and
- a porous member comprising an electrically insulative material and disposed in the cavity, the first ends of the first and second electrical conductors extending into the porous member and being spaced from each other in the porous member;
- and
- a vent that extends through the thickness of the metal pipe, wherein the corrosion indicator is located within a distance of six inches from the vent.
6 more elements
A corrosion indicator suitable for use in a metal pipe, the metal pipe including an inner surface and an outer surface and a thickness extending between the inner and the outer surfaces, a vent that extends through the thickness of the metal pipe, and a non-metallic liner in the metal pipe, contacting the inner surface, the corrosion indicator comprising:
- first and second electrical conductors each having a first end and each having an exterior second end for connection to a voltage source;
- a member comprising an electrically insulative material disposed in a cavity in the thickness of the metal pipe, the first ends of the first and second electrical conductors extending into the electrically insulative material and being spaced from each other in the electrically insulative material;
- and
- wherein the corrosion indicator is located within a distance of six inches from the vent.
1 more element
Dependencies are inferred from the claim text.