Ammonia excess flow valve
US6123100A · kind A · utility
2Cited by
3References
4Claims
0Family size
Inventor
Key dates
| Filing date | Nov 23, 1998 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Nov 23, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87917
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An ammonia excess flow valve has a seal ring (24) slidably positioned around at least two retainer vertical members (22B). A disk (26) has a disk central opening (26A) and a disk pin opening (26B) therethrough. The disk (26) is positioned adjacent to and below a retainer (22). A conduit (28) sealably connected to the disk (26) over the disk pin opening (26B) extends upwardly therefrom. The conduit (28) functions to permit the ammonia excess flow valve (10) to be reset by equalizing pressures on both sides of the disk (26) once excess flow that trips the ammonia excess flow valve (10) is remedied, minimizing creation of vapor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.