Nozzle assemblies for atomizing and mixing different fluids and combining the mixture with solids and the like

Abstract

Nozzle assemblies are provided which are effective for atomizing and mixing different or unlike fluids, and for combining the mixtures with solids and the like. The nozzle assemblies project the fluids, in the form of sprays or jets, which combine or mix at points or areas spaced forwardly of the nozzles, whereby clogging of the nozzles is avoided, and the separate fluids are prevented from contaminating each other within the nozzles or other parts of the assemblies. Nozzles of special or unique design are provided, which have an improved atomizing action.

Having thus described my invention, I claim: 
     
       1. In a nozzle assembly of the character described, a body having passageways for flow of separate fluids therethrough, a nozzle or stem mounted in said body and having parallel passageways communicating with said first-named passageways, said stem having a conical surface at its upper end, said second-named passageways terminating at said conical surface, said stem having spaces offset inwardly from said terminal ends of said second-named passageways, but in communication with said terminal ends, and a cap mounted on said stem and having a conical lower surface seated on said first-named conical surface, and effective to cause fluids emerging from said second-named passageways to be diverted into said spaces. 
     
     
       2. A nozzle assembly, as defined in claim 1, including means secured to said body for maintaining said cap in said seated position. 
     
     
       3. A nozzle assembly, as defined in claim 2, wherein said stem is milled at its upper end to provide a plurality of said spaces, which are non-communicating with each other, and said cap is effective to prevent such communication. 
     
     
       4. In a nozzle assembly of the character described, a nozzle stem having passageways for flow of separate fluids therethrough, said stem having a conical surface at its upper end, said passageways terminating at said conical surface, said stem having spaces offset inwardly from said terminal ends of said passageways, but in communication with said terminal ends, and a cap mounted on said stem and having a conical lower surface seated on said first-named conical surface, and effective to cause fluids emerging from said terminal ends of said passageways to be diverted into said spaces. 
     
     
       5. A nozzle assembly, as defined in claim 4, including means for securing said cap in seated position on said stem. 
     
     
       6. A nozzle assembly, as defined in claim 5, wherein said stem is milled at its upper end to provide a plurality of said spaces, which are non-communicating with each other, and said cap is effective to prevent such communication. .Iadd. 7. In a nozzle assembly of the character described, a body having passageways for flow of fluids therethrough, a nozzle or stem mounted in said body and having passageways communicating with said first-named passageways, said stem having a conical surface at its upper end, said second-named passageways terminating at said conical surface, said stem having spaces offset inwardly from said terminal ends of said second-named passageways, but in communication with said terminal ends, and a cap mounted on said stem and having a conical lower surface seated on said first-named conical surface, and effective to cause fluids emerging from said second-named passageways to be diverted into said spaces. .Iaddend..Iadd. 8. A nozzle assembly as defined in claim 7, including means secured to said body for maintaining said cap in said seated position. .Iaddend..Iadd. 9. A nozzle assembly, as defined in claim 8, wherein said stem is milled at its upper end to provide a plurality of said spaces, which are non-communicating with each other and said cap is effective to prevent such communication. .Iaddend. .Iadd. 10. In a nozzle assembly for use in connection with a paint spray gun, a nozzle stem having a passageways for flow of fluids therethrough, said stem having a conical surface at its upper end, said passageways terminating at said conical surface, said stem having spaces offset inwardly from said terminal ends of said passageways but in communication with said terminal ends, and a cap mounted on said stem and having a conical lower surface seated on said first-named conical surface, and effective to cause fluids emerging from said terminal ends of said passageways to be diverted into said spaces. .Iaddend..Iadd. 11. A nozzle assembly, as defined in claim 10, including means for securing said cap in seated position on said stem. .Iaddend..Iadd. 12. A nozzle assembly, as defined in claim 11, wherein said stem is milled at its upper end to provide a plurality of said spaces, which are non-communicating with each other, and said cap is effective to prevent such communication. .Iaddend. .Iadd. 13. An airless spray painting nozzle for atomizing a liquid paint comprising a stem having a longitudinal axis, a frustoconical surface at one end of said stem, said frustoconical surface having a conical surface extending longitudinally to and terminating at a lateral end face, separated spaces extending laterally into said stem from said conical surface toward said longitudinal axis and extending longitudinally into said stem from said lateral end face, liquid paint passages extending longitudinally through said stem and terminating at said spaces, a cap having a matching conical lower surface seated on said conical surface of said stem, said conical lower surface being longitudinally aligned with the locations at which said passages terminates at said spaces so that liqud paint discharged from said passages impinges upon said conical lower surface. .Iaddend..Iadd. 14. An airless spray painting nozzle as set forth in claim 13, said passages terminating at the juncture of said stem conical surface and said lower conical surface. .Iaddend..Iadd. 15. An airless spray painting nozzle as set forth in claim 13, wherein said conical surfaces cooperating to maintain said spaces in non-communicating relation with one another. .Iaddend. .Iadd. 16. An airless spray painting nozzle for atomizing a liquid paint comprising a stem having a longitudinal axis, a conical surface at one end of said stem, a cap having a matching conical lower surface seated on said conical surface of said stem, cylindrical liquid paint passages extending longitudinally through said stem and terminating at locations at the juncture of said conical surfaces, said cap and said stem including laterally extending spaces at said locations, said passages terminating at an elliptical openings defined by said cylindrical passages and by said conical lower surface. .Iaddend..Iadd. 17. An airless spray painting nozzle for atomizing a liquid paint comprising a stem having a longitudinal axis and a longitudinally facing end surface, liquid flow passages for carrying said liquid paint substantially in the absence of air or other gas, said passages extending longitudinally through said stem and terminating at a passage openings at said end surface, an inclined wall longitudinally aligned with each of said passage openings, said inclined wall extending in a direction longitudinally away from each of said passage openings and laterally toward said longitudinal axis, said inclined wall being constructed and arranged so that said liquid paint discharged from each of said passage openings impinges upon said inclined wall, said inclined wall terminating at a first laterally extending edge spaced longitudinally and laterally away from each of said passage openings, said first laterally extending edge facing in a direction toward said longitudinal axis, and a second laterally extending edge spaced longitudinally and laterally away from each of said passage openings, said second laterally extending edge facing in a direction away from said longitudinal axis, and said laterally extending edges each being disposed in a plane which is perpendicular to said longitudinal axis. .Iaddend. .Iadd. 18. An airless spray painting nozzle as set forth in claim 17, including a three-dimensional space between each of said passage openings and said first and second edges. .Iaddend..Iadd. 19. An airless spray painting nozzle as set forth in claim 18, said first and second edges being coplanar and intersecting to cooperatively define an end opening associated with each of said passage openings, and each of said end openings being spaced longitudinally from said associated passage opening, and said three-dimensional spaces being between said passage openings and said end openings. .Iaddend..Iadd. 20. An airless spray painting nozzle as set forth in claim 17, wherein said end surface is conical. .Iaddend..Iadd. 21. An airless spray painting nozzle as set forth in claim 17, wherein said inclined surface is conical. .Iaddend..Iadd. 22. An airless spray painting nozzle as set forth in claim 17, wherein said first laterally extending edge is semicircular. .Iaddend..Iadd. 23. An airless spray painting nozzle as set forth in claim 17, wherein said second laterally extending edge is straight. .Iaddend. .Iadd. 24. An airless spray painting nozzle for atomizing a liquid paint comprising a stem having a longitudinal axis and a longitudinally facing end surface, liquid flow passages for carrying said liquid paint substantially in the absence of air or other gas, said passages extending longitudinally through said stem and terminating at passage openings at said end surface, an inclined wall longitudinally aligned with each of said passage openings, said inclined wall extending in a direction longitudinally away from said passage openings and laterally toward said longitudinal axis, said inclined wall being constructed and arranged so that liquid paint discharged from said passage openings impinges upon said inclined wall, a laterally extending edge spaced longitudinally and laterally away from each of said passage openings, said edge facing said inclined wall, said inclined wall at least partially defining three-dimensional spaces associated with said passage openings, and said three-dimensional spaces being disposed between said associated passage openings and said edge. .Iaddend..Iadd. 25. An airless spray painting nozzle as set forth in claim 24, said laterally extending edge at least partially defining end openings associated with said passage openings, and said end openings being spaced longitudinally from said passage openings, and said three-dimensional spaces being between said passage openings and said end opening. .Iaddend. .Iadd. 26. An airless spray painting nozzle as set forth in claim 24, said end surface and said inclined wall each being conical. .Iaddend..Iadd. 27. An airless spray painting nozzle assembly comprising a stem and a cap, said stem having a conical surface, liquid flow passages extending through said stem and terminating at spaced locations at said conical surface, said cap having a matching conical surface seated on said conical surface of said stem, said conical surface and said matching conical surface cooperatively defining elliptical nozzle openings, said stem including a radial wall intersecting said conical surface of said stem, said passages intersecting said radial wall, and said nozzle openings being at intersections of said passages and said radial wall. .Iaddend.