Penetrable cap
US6893612B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2002 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Jul 6, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/2575
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A cap which can form an essentially leak-proof seal with an open-ended vessel capable of receiving and holding fluid specimens or other materials for analysis. To minimize potentially contaminating contact between a fluid sample present in the vessel and humans or the environment, the cap has a frangible seal which is penetrable by a plastic pipette tip or other fluid transfer device. The cap further includes a filter for limiting dissemination of an aerosol or bubbles once the frangible seal has been pierced. The filter is positioned between the frangible seal and a retainer. The retainer is positioned on the cap above the filter and may be used to contain the filter within the cap. The material of the retainer may be penetrable by a fluid transfer device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.