US 2006/0188337 A1 · PIPING SYSTEM WITH TRANSITION COUPLING

Abstract

In a pipeline system having a plurality of pipe segments joining a fluid supply tank to a fluid dispenser, the invention includes a pipe coupling assembly for use on at least one terminal end of a fluid transfer pipe, where the transfer pipe has an inner tubular member for transferring fluid and an outer tubular member and an interstitial space there between. The coupling assembly comprises a transition coupling for attachment to the pipe segment to provide a first path for the fluid in the inner tubular member and a second path for the interstitial space. The coupling assembly further comprises a transition tube assembly for attachment to the transition coupling to provide separate paths for the transfer fluid and the interstitial space, where the interstitial space provides a means for performing leak detection or fitting integrity tests during application of either a vacuum condition or pressurized gas input via such selective access.

Claims19

Dependent claims

A pipe system for distributing fluids from a storage tank to one or more dispensers comprising:

an originating adaptor fitting located at the tank and shear valves located at each of the one or more dispensers;
a pipe segment extending between the adaptor fitting and one of the shear valves, said pipe segment having an interstitial space between an inner and an outer pipe;
a transition coupling connecting the adaptor fitting to the pipe segment, said transition coupling comprising a ferrule, an insert, a means for securing the coupling to the adaptor fitting;
said transition coupling further comprising sealing means for preventing fluid leakage from the coupling connection to the fitting, said coupling further comprising sealing means for preventing fluid leakage from the interstitial space between the inner and outer pipes, and further comprising an interstitial access port for connecting a tube that provides access to the interstitial space between the inner and outer pipes.

1 more element

Dependencies are inferred from the claim text.

Piping system with transition coupling

Life of this patent

Piping system with transition coupling

Life of this patent

Abstract

Claims19