Device for over-pressure protection for a storage tank
US6382235B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2001 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Feb 16, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2637
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device for over-pressure protection of a tank has a main body defining a main passage with an inlet and an outlet. The main body also defines a release passage branched from the main passage. A shut-off mechanism is movably disposed within the main passage and defines an open position for allowing a liquid to flow from the inlet to the outlet and a closed position for at least partially blocking the flow. Additionally, a plunger is movably disposed within the main body and connects to the shut-off mechanism. The plunger has a weight sufficient to maintain the shut-off mechanism in the open position until pressure in the release passage exceeds a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.