Device for ejecting a metered quantity of vaporized fluid

Details Device for ejecting a metered quantity of vaporized fluid Device for ejecting a metered quantity of vaporized fluid

1999-03-31

2000-04-04

Raevis, Robert

Measuring and testing

Instrument proving or calibrating

Gas or liquid analyzer

G12B 1300

Patent

active

060446889

ABSTRACT:
A device for delivering a metered quantity of vaporized liquid material to the surrounding atmosphere is disclosed. The device includes a reservoir for storing the liquid material, and a conduit in flow communication with the reservoir, with a portion of the conduit defining a dosing chamber for storing the metered quantity of the liquid material. The conduit further includes an impeding portion for restricting the flow of the liquid material from the dosing chamber toward the reservoir. An outlet nozzle is provided and is in flow communication with the dosing chamber. A thermal activator is disposed adjacent the dosing chamber for vaporizing the liquid material in the dosing chamber thereby ejecting the vaporized material through the outlet nozzle to the atmosphere.

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PCT International Search Report, Appl. No. PCT/US98/22349 mailed Jan. 25, 1999.

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