Filter Simulation System
AssigneeArgon Electronics (UK) Ltd.
InventorSteven Pike
Life of this patent
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Abstract
A filter simulation system that includes a simulation filter (11) with a sensor (13) such that the volume of air passing through the filter can be determined. There is also a control means (16) with stored data relating to level of protection the simulation filter provides against a simulated toxic substance. In this way the filter simulation system can determine whether a correct simulation filter has been selected by a user and whether or not that filter has expired, in which case a dead or incapacitated result can be indicated. In the event of expiry a simulation end of life service indicator (ELSI 22) may be activated.
Claims22
A filter simulation system including:
- a simulation filter;
- a sensor;
- a processor for determining the volume of air passing through the filter as detected by the sensor;
- a controller with stored data relating to the level of protection the simulation filter provides against a simulated toxic substance;
- wherein the concentration of simulated toxic substance within the volume of air calculated by the processor is comparable to the stored data in the controller for determining whether the simulation filter has ceased to be effective and, if the controller determines that the simulation filter has ceased to be effective, then the user is able to be indicated as dead or incapacitated.
Dependencies are inferred from the claim text.