Container seal testing and pressurization
US5285678A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1988 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Dec 21, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/366
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for nondestructively testing sealed containers to proof test for seal leaks present in one or more container seals formed between mating parts of a container. The apparatus preferably includes a container rest or support assembly which holds a container being tested. The container support can advantageously include two corresponding testing head members which are movably mounted on a frame to clamp peripheral portions of the container to form a secondary seal outward of the primary seal which is being tested for leakage. The secondary seal creates a test chamber defined within marginal edge portions of the container which is adjacent the primary seal for applying a testing pressure thereto. Some of the preferred embodiments include a passage forming device for forming a testing fluid supply passage into the test chamber. The passage forming device can be an injection probe which forms an opening and injects a pressurized testing fluid into the test chamber. Also shown is a testing device adapted for supplying a test pressure to preformed testing fluid supply openings located along the marginal portions of the sealed containers to communicate the desired testi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.