| 摘要 |
A fluid substance sprayer for spraying substances, such as liquids, paste, etc., includes a container for the substance with a lifting tube extending downwardly into the lowermost portion of the container and terminating at its upper end in a discharge fitting which includes a valve for closing off the lifting tube and opening it under the control of an actuator for the discharge of the substance out through a conduit terminating in a nozzle discharge. A filling tube is also provided on the interior of the container and it connects to a filling valve. A propelling gas, such as air, may be charged into the container through the valve to the top of the container above the substance level. An air opening is advantageously provided in the lifting tube or in the connecting discharge conduit of the discharge fitting to permit either a portion of the propelling fluid to flow into the lifting tube or discharge conduit or outside air, for the purpose of insuring atomization of the fluid so that it discharges in a spray. One construction includes a separate outer container having a discharge fitting and which accommodates a separate container for the substance to be sprayed and a separate container for the propellant gas which may be inserted into an openable bottom.
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