Method of inspection of sealed capsules with a process of determination of the quality of the seal and related equipment for in-line inspection
US8810259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2010 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | May 18, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/15
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An exemplary embodiment of this invention relates to a method of inspection of a filled hard capsule sealed with a solvent sealing agent, including a process for determining the quality of the seal. The process may include: supplying a filled hard capsule sealed with a solvent sealing agent; supplying a microwave resonator wherein a measuring field having a resonance curve is generated; directing the capsule through the measuring field; measuring characteristics related to the modification of the resonance curve produced by the presence of the capsule in the measuring field, in comparison with a reference resonance curve corresponding to an empty state of the resonator; and using the measured characteristics to determine a value associated with the quality of the seal. Other exemplary embodiments of this invention relates to a method for sorting capsules on the basis of the result of the inspection method and to an associated equipment able to carry out such methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.