Temperature compensated methods for detection of leaks in pressurized pipeline systems using piston displacement apparatus
US5189904A · kind A · utility
80Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1992 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | Jan 3, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/2892
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The piston displacement apparatus and method for detection of leaks in pressurized pipelines disclosed herein measures volume changes at different pressures to determine thermally compensated leak rates. The apparatus uses a piston displacement apparatus to precisely determine volume changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.