Positive displacement pump apparatus and methods for detection of leaks in pressurized pipeline systems
US5090234A · kind A · utility
105Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1990 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Aug 30, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/2892
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The positive-displacement pump 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 positive-displacement pump apparatus to precisely determine volume changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.