Hydrostatic pressure test pump
US6503066B1 · kind B1 · utility
4Cited by
15References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2000 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Jun 20, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86381
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pressure testing apparatus to bring, and maintain, pressure within a test vessel at a proof pressure. The apparatus includes an air motor and a fluid pump which is removably mountable to the air motor. The air motor drives the fluid pump and the pump piston which reciprocatively moves with the motor piston. A precision pressure adjustment unit is located on an outlet side of the fluid pump and includes a chamber and a piston manually adjustable to expel a fluid from the chamber to increase the pressure in the test vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.