Control system and process for controlling a breathing gas circuit in a closed-circuit respirator
US11666719B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2019 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Aug 11, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2230/50
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A control system, for controlling a closed-circuit respirator breathing gas circuit, includes a temperature sensor, a temperature-reading unit and with a control unit. The temperature sensor is configured to send a temperature signal in the presence of a corresponding temperature polling. The temperature signal indicates the temperature currently present in an area surrounding the temperature sensor. The temperature-reading unit is arranged in the closed-circuit respirator at a spaced location from the breathing gas circuit and the temperature sensor, and is configured to trigger the temperature polling at the temperature sensor by sending a polling signal, and to receive the temperature signal sent by the temperature sensor. The control unit is signal connected to the temperature-reading unit and is configured to determine the temperature indicated by the temperature signal in the area surrounding the temperature sensor and to output a control signal as a function of this temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.