Overpressure protection system and method for a hyperbaric chamber
US8479734B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 10, 2009 |
| Grant date | Jul 9, 2013 |
| Priority date | — |
| Expiry date | Jul 26, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7769
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An overpressure protection system and method for a hyperbaric chamber having a secondary relief valve in pressure communication with a hyperbaric chamber and configured to actuate upon occurrence of a predetermined pressure condition. Actuation of the secondary relief valve causes an output signal to be delivered to a relay input, which results in actuation of an emergency vent valve to close an oxygen shutoff valve to terminate the flow of oxygen to the chamber. In the preferred embodiment, the predetermined pressure condition occurs when the chamber pressure exceeds the maximum chamber set point plus a predetermined pressure differential. In the preferred embodiment, the relay may be pneumatic or electromechanical.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.