Tamper-resistant valve and connection arrangement
US8899262B2 · kind B2 · utility
3Cited by
27References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2009 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Aug 24, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7828
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gas cylinder valve 2 is able to be opened by application of a pilot gas pressure. In certain embodiments the gas cylinder valve 2 is usable with a yoke 8 for engaging with a valve assembly of a gas cylinder 1, the yoke comprising a pilot gas passage 28 able to connect a pilot gas chamber 37 in the cylinder valve assembly to a source of pressurized pilot gas and the cylinder gas port of the gas cylinder valve to an external cylinder gas passage. The valve and yoke enable the tamper-resistance of a gas cylinder to be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.