Method and arrangement for eliminating the risk of leakage from a first one to a second one of two fluid systems
US8286653B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2008 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Nov 4, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/88062
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method is provided for eliminating the risk of leakage from a first one to a second one of two fluid systems in an apparatus for handling a fluid for human consumption, with a shut-off device including a cavity and a respective valve element connecting the cavity to each of the two fluid systems, each valve means being capable of preventing any fluid communication from the cavity to the respective fluid system. When the valve element prevents any fluid communication from the cavity to the fluid systems, a fluid is supplied to the cavity and a pressure is provided in the cavity which is higher than one or each of the respective pressures in the two fluid systems, thereby eliminating the risk of leakage from a first one to a second one of two fluid systems in case of failure of the valve element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.