Patent · US Active

Pipe lining leak testing methods and apparatus

US10465834B2 · kind B2 · utility

2Cited by

4References

35Claims

0Family size

Assignee

Pioneer Lining Technology Limited · GB

Inventor

Stephen Barnes · Plano, US

Key dates

Filing date	Aug 18, 2016
Grant date	Nov 5, 2019
Priority date	—
Expiry date	Oct 30, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16L2201/30
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Methods and apparatus enable the integrity of a liner pipe to be quickly and effectively tested in the field, while permitting rapid removal and replacement of the liner pipe if it is compromised. The liner pipe is leak tested prior to reversion, after being pulled through a host pipe to be lined via a swaging die and while the liner pipe is still under tension. If the liner pipe exhibits a leak, it can be removed from the liner pipe immediately and, importantly, before it has expanded to contact the host pipe. Leak testing apparatus includes a packer, which seals the opposite end of the liner pipe from the end which is pulled, creating a contained fluid volume upon which the leak test is performed. The leak test may be a pressure test or a vacuum test or any other suitable test.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.