Apparatus for aseptic and antiparticulate opening of sealed glass containers
US4465501A · kind A · utility
1Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 2, 1982 |
| Grant date | Aug 14, 1984 |
| Priority date | — |
| Expiry date | Nov 2, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Q1/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
According to the method of aseptic and antiparticulate opening of a sealed glass ampul, one end of the ampul is submitted to a powerful thermal flux produced by flame tongue generating sources on a very localized zone for a time period sufficient to obtain melting of the glass while maintaining the adjacent portion thereof at lower temperature for preserving its rigidity, such time period being the shorter the smaller that volume of gas contained in the ampul which is quickly brought to an increased temperature and pressure to cause the ampul to be opened up in the considered molten zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.