Portable agent generator
AssigneeThe United States of America as represented by the Secretary of the Army
InventorsFrederick C. Baldauf, Kwok Y. Ong
Life of this patent
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Abstract
A test agent, generation system capable of producing a low constant vapor test agent for use in a method of calibrating and checking the GB agent sensitivity of a point-source alarm system.
Claims11
A self-contained system for generating a dilute agent vapor of desired concentration for use in calibrating and testing the sensitivity of an agent point-source alarm by the agent vapor consisting essentially of an air supply source for providing an air flow to the system;
- valves for regulating said air flow;
- a drierite column and charcoal filtering means for purifying said air flow;
- a flowmeter to regulate the flow of said purified air to a bubbler means, the bubbler means containing a dilute liquid agent solution through which said air flow is bubbled to produce an agent vapor;
- cooling means attached to said bubbler for maintaining the liquid agent solution within the bubbler at a constant temperature;
- a interconnected means for adding a regulated flow of air to said agent vapor to produce a dilute agent vapor of desired concentration and a means for flowing said dilute agent vapor from the system to a point-source agent alarm.
A method for generating a low, stable concentration of agent vapor within a fast equilibration time for use in calibrating and testing the sensitivity of a agent alarm system comprising the steps of providing a source of air to a system for generating a dilute agent vapor, the system including the steps of regulating the flow of said air to a bubbler by means of valves and an air flowmeter;
- flowing the air through a charcoal filter and a drierite column to filter said air;
- flowing the filtered air through the flowmeter to provide a constant flow of air to the bubbler;
- bubbling the air through a dilute agent solution within the bubbler to produce an agent vapor;
- diluting the agent vapor eluted from the bubbler by adding a regulated flow of air to said agent vapor to produce a dilute agent vapor of desired concentration and subsequently introducing said dilute agent vapor into the agent alarm.
Dependencies are inferred from the claim text.