First stage regulator and rotatable in-line valve
US5911220A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1998 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Feb 20, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D16/0663
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A regulator for a self-contained breathing apparatus having a regulator body connected to a source of high pressure gas. An in-line valve within the regulator body is in communication with the source of high pressure gas. A primary burst disc is disposed within the in-line valve which is adapted to block the passage of gas from the source of pressurized gas when the gas is pressurized below a given pressure and to give way when the gas is pressurized above a given pressure when the in-line valve is closed. A first stage regulator is disposed within the regulator body for receipt of pressurized gas when the in-line valve is open. A demand regulator can be connected to the regulator body for receipt of regulated breathing gas from the first stage regulator. A conduit within the regulator body extends from the high pressure chamber to ambient and a burst disc is disposed within the conduit which will burst above a given gas pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.