[54] METHOD AND APPARATUS FOR THE PNEUMATIC SPRAYING OF LIQUID PRODUCTS
[75] Inventor: Michel Binoche, Paris, France
[73] Assignee: SKM, Societe Anonyme, Staines, France
[21] Appl. No.: 886,360
[22] Filed: Mar. 14,1978
[30] Foreign Application Priority Data
Mar. 22, 1977 [FR] France 77 08469
[51] Int. C1.3 B05B 7/08
[52] U.S. CI 239/8; 239/296;
239/599
[58] Field of Search 239/8, 290, 296, 297,
239/299, 300, 424.5, 599, 597
[56] References Cited
U.S. PATENT DOCUMENTS
2,569,251 9/1951 Nieburg 239/297 X
2,587,993 3/1952 Gray 239/296
3,252,657 5/1966 Winegar 239/296
3,521,824 7/1970 Wilcox 239/299 X
3,843,052 10/1974 Cowan 239/296 X
FOREIGN PATENT DOCUMENTS
2303603 10/1976 France 239/296
Primary Examiner—Robert W. Saifer
[57] ABSTRACT
This pneumatic spray gun for atomizing paint comprises a flat-jet nozzle of the type utilized in hydrostatic atomization spray guns, this nozzle being surrounded by compressed-air jets disposed symmetrically and parallel to the flat jet of paint so as to envelope and drive same, other compressed-air jets being disposed symmetrically in a plane perpendicular to the flat jet of paint and converging thereagainst, whereby a satisfactory atomization is obtained which precludes not only the detrimental high pressure values of hydrostatic atomization, but also the considerable output of compressed air of conventional pneumatic atomization and the attendant losses of paint and other inconveniences deriving therefrom.
4 Claims, 22 Drawing Figures
