Safety valve
US10184582B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2015 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Aug 1, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K17/0406
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A safety valve releases a fluid in the event of a fire. To do so it comprises a valve shutter in a body for opening or closing a pipe containing the fluid. A first spring is kept under tension against heat-sensitive means for releasing the valve shutter when the tension is released by the sensitive means. The sensitive means comprise a piston acting on the first spring, a pipe being connected to a chamber delimited in the body by the piston on the opposite side to the first spring. The pipe and the chamber contain a pressurized control fluid so that the piston keeps the first spring under tension. The pipe is made of a material capable of melting at a predetermined temperature so as to release the fluid in the event of a fire around the pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.