Fluid control method and device
US5069239A · kind A · utility
11Cited by
11References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 1991 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | May 10, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7876
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A liquid packaging machine includes a filler containing a non-return valve spring-biased closed. The valve includes a closure member to a stem of which is fixed a centering spider, the spokes of which contain iron members. Distributed around the valve housing are horseshoe, permanent magnets. During production of filled cartons, the magnet device is positioned so as not to interfere with the movement of the closure member. However, when air is to be bled from the filler and/or the filler is to be steam-sterilized, the magnet device is positioned to attract the iron members to open the valve against the spring bias.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.