Ventilation filter medium for container, and container and container cap equipped with ventilation filter medium
US7097682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2002 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Dec 27, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G18/68
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a culture container and a cap for a container having a ventilation filter medium or a medium similar thereto that can exchange carbon dioxide gas in the culture container with atmospheric air, and prevent the contamination of sterilized culture medium inside the culture container with fungi, mites, and the like. A culture bottle includes a bottle unit, and a cap that is mounted on an opening. The cap includes a cap unit, and a ventilation filter medium. A hole is provided in the cap unit. The ventilation filter medium includes a plurality of micropores having a pore diameter between 0.1 and 50 micrometers, and is mounted on the hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.