Dual poppet pressure relief valve with vacuum adaptor capability
US11473685B2 · kind B2 · utility
2Cited by
52References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2020 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Apr 17, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7846
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure relief valve is disclosed with a first stage valve that is in series with a second stage valve, with an enclosed cavity between the first stage valve and the second stage valve. The first stage valve relieves pressure from an enclosure into the enclosed cavity between the stages, when the pressure is above a cracking pressure of the first stage valve. The second stage relieves pressure from the enclosed cavity when the pressure is above the cracking pressure of the second stage valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.