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US 4,905,905 AGranted
Paint spray nozzle
AssigneeAccuSpray, Inc.
InventorJohn W. Hufgard
Life of this patent
Estimating the term…
Abstract
An improved spray nozzle for use with air atomizable liquids wherein the spray pattern created by the atomizing nozzle may be adjusted from a circular pattern to a flat pattern or alternatively to an open oval, the open end facing in preselected directions, the adjustments being capable of occuring during the continuous operation of the nozzle. A pattern adjusting plate may be movably aligned with the pattern adjusting nozzles thereby creating the appropriate combination of pattern adjusting nozzles to create the desired pattern.
Claims11
A spray nozzle for use with air atomizable liquids comprising;
- means forming an air chamber having an outlet end;
- a reciprocably mounted fluid nozzle valve having a conical taper penetrating said air chamber and extending to and coaxially aligned with a central circular aperture in the outlet end of said air chamber;
- means for delivering a liquid to said central aperture for atomization by air exiting said air chamber through said central aperture;
- at least two pattern adjusting nozzles disposed adjacent to the central aperture of said air chamber;
- means for adjusting fluid communication to said pattern adjusting nozzles to vary the flow rate of air through said nozzles;
- and
- means for providing laminar air flow through the central aperture,
- the outlet end of said air chamber having a converging down stream frusto-conical shape which terminates at said central aperture,
- said fluid nozzle valve including fluted surface means of increasing down stream cross-sectional area for air flow for providing said laminar air flow through the central aperture.
6 more elements
Dependencies are inferred from the claim text.