초록 ▼

A method of verifying function and status of breathing equipment, wherein the breathing equipment includes a gas supply, a closure valve on the gas supply, a primary pressure regulator downstream of the closure valve, a pressure sensor, a secondary pressure regulator downstream of the primary pressu

A method of verifying function and status of breathing equipment, wherein the breathing equipment includes a gas supply, a closure valve on the gas supply, a primary pressure regulator downstream of the closure valve, a pressure sensor, a secondary pressure regulator downstream of the primary pressure regulator, a breathing mask downstream of the secondary pressure regulator, an indicator, a processor connected to the pressure sensor and the indicator, and gas lines between the gas supply, the primary pressure regulator, the secondary pressure regulator, and the mask. A processor for receiving sensed data, comparing the sensed data to control values, and producing an output signal is activated. At least one functional or status variable within the equipment is measured. The at least one measured value is compared to a corresponding control value with the processor. An output signal based upon the comparison is produced. The output signal is transmitted to an indicator to indicate whether the at least one measured value substantially corresponds to the at least one control value.

대표청구항 ▼

[ I claim:] [1.] A method for verifying the functioning and status of breathing apparatus for an irrespirable environment prior to use of the apparatus, the method comprising the steps of:providing a breathing apparatus including a gas supply, a closure valve on the gas supply, a pressure regulator

[ I claim:] [1.] A method for verifying the functioning and status of breathing apparatus for an irrespirable environment prior to use of the apparatus, the method comprising the steps of:providing a breathing apparatus including a gas supply, a closure valve on the gas supply, a pressure regulator downstream of the gas supply, at least one sensor, a breathing mask downstream of the pressure regulator, a status indicator, processing means connected to the sensor and the status indicator, and gas lines between the gas supply, the pressure regulator, and the masks;prior to use of the breathing apparatus the processing means is activated for receiving sensed data, comparing the sensed data with predetermined control values, and producing an output signal;measuring at least one functional or status variable within the apparatus;comparing at least one of the at least one measured variables with a corresponding stored control value in the processing means; andgenerating an output signal based upon the comparison to verify whether the breathing equipment is usable prior to use.