Testing container seals
US4774830A · kind A · utility
29Cited by
12References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1987 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Aug 25, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/366
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Leak detector for use in detecting defective flange-shaped seals between lid and body portions of a package. A pressure chamber is provided for isolating the external edge of the seal and applying test pressure thereto. Containment of the pressure chamber includes sealing pressure applied mechanically to the flange-shaped package seal during testing, but this sealing pressure does not affect seal testing because it is appropriately limited by a self-compensating biasing of the mechanical seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.