Slam shut safety device
US9353877B2 · kind B2 · utility
0Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2014 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Oct 11, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/773
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A safety device for a gas distribution system includes a valve body, an upper casing attached to the valve body, the upper casing housing at least one spring. Further, the at least one spring is attached to a movable diaphragm that is exposed to gas system pressure. The valve body also includes a release element mounted within the valve body. The release element releasing a relatch plug when the device is activated to move a safety disc into contact with a valve seat to stop fluid from flowing when an overpressure or an underpressure condition is sensed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.