Apparatus for filling and hermetically sealing thermoplastic containers under vacuum
US3996725A · kind A · utility
15Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 21, 1973 |
| Grant date | Dec 14, 1976 |
| Priority date | — |
| Expiry date | May 21, 1993 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67C3/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Thermoplastic containers are filled with materials such as particulate solids or liquids under vacuum and hermetically sealed in rapid succession by an apparatus having a means for evacuating the container, means for filling and hermetically sealing the evacuated containers while retaining the vacuum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.