US 10,502,345 B2 · Dissipative lightning resistant tubing system

Abstract

Apparatus for detecting an electrical insult to a gas tubing system and dissipating the energy from such insult. The system includes tubing and an injury mitigator. The tubing includes a conduit, an insulating layer, a conductive layer, and a jacket. The conduit is connected to earth ground. The conductive layer is electrically insulated from the conduit by the insulating layer. The mitigator includes an insult event detection circuit and an energy dissipation circuit, both electrically connected between the conductive layer of the tubing and ground. Insult indication is provided by a fusible link. Energy dissipation is provided by the fuse, a transient voltage suppression (TVS) device, and/or a spark gap. The TVS device has a setpoint voltage less than the breakdown voltage of the spark gap, ensuring that the TVS device actuates before the spark gap conducts.

Claims20

Dependent claims

An apparatus for carrying a gas in an environment that is subject to an electrical insult, said apparatus comprising:

a tubing having a first end and a second end, said tubing having a conduit, an insulating layer, and a conductive layer, said insulating layer enclosing said conduit between said first and second ends, said conductive layer extending between said first and second ends, said insulating layer electrically insulating said conduit from said conductive layer;
an energy dissipation circuit electrically connected between said conductive layer and said conduit;
and
an indicator electrically connected between said conductive layer and said conduit, and said indicator providing indication that the electrical insult occurred.

1 more element

Dependencies are inferred from the claim text.

Dissipative lightning resistant tubing system

Life of this patent

Dissipative lightning resistant tubing system

Life of this patent

Abstract

Claims20