Cap/closure having a venting mechanism for use with centrifuge containers
US5899349A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1997 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Oct 2, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S215/03
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A cap assembly for use with a centrifuge container includes a stopper (plug) member to provide a fluid-tight seal of an open end of the container. The stopper member includes a channel therethrough. A lid receives the combination of a stopper fitted into the open end of the container. Depending portions on the underside of the lid press upon the stopper to ensure a reliable seal of the container. In addition, the depending portions are adapted to close off an opening of the channel when the lid and stopper are assembled. Removal of the lid opens the channel allowing air to flow into the container, and in this way any vacuum that develops in the container during a centrifugation run is released by such action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.