Stopper device for container and mixing apparatus using the same
US5423793A · kind A · utility
55Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1993 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Nov 23, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61J1/2065
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a stopper device comprising a stopper-support structure having a passage inside and a stopper accommodated in the-passage so as to block the passage but movably in the passage, as well as an apparatus containing the stopper device, used for mixing of two components. The stopper device can be penetrated with a connecting device with no edge and therefore generates no debris during penetration and reliably prevents leakage of container contents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.