Burst-pressure test fixture for pressure vessels dynamic rocket motors
US4356720A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1981 |
| Grant date | Nov 2, 1982 |
| Priority date | — |
| Expiry date | Feb 4, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N3/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for burst testing a vented pressure vessel accurately measures the rue burst pressure of the vented pressure vessel. The method employs a burstpressure test fixture which comprises a plug and a gauge adapter member for substantially plugging the vent opening in a pressure vessel to be burst tested. The plug and gauge adapter member is adapted for receiving a transducer or pressure gauge that is integrally mounted with a pressure gauge tube which is insertably mounted in the plug and gauge adapter member. The vent opening which is substantially plugged with the tube member of the plug and gauge adapter member is free from stress during pressurization to burst pressure. The method requires that the plug and gauge adapter member be stationary, but the vented pressure vessel is allowed to move outwardly along the tube member during dynamic testing. The fit of the plug to the vent opening (i.e., the throat when the pressure vessel is a rocket motor) is a close enought fit as long as the fly off time of the pressure vessel is greater than the pressure rise time to burst pressure. The fixed position of the plugging member is independent of the pressure vessel during dynamic testi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.