Spray nozzles

Claim 2

A spray nozzle for spraying liquid particles from aerosol containers, comprising: a. a plurality of converging jet-forming passages directing the flow of streams of fluid; b. a cavity positioned at the location of the convergence of the passages where the streams of fluid meet, wherein the cavity is defined by the juncture of the walls of the jet-forming passages and the extending walls of the jet-forming passages that do not meet; and c. a nozzle opening for expelling the converging streams of fluid, wherein the internal side of said opening is formed at substantially the point where the axes of the jet-forming passages intersect if the axes are projected onto a plane in which one of the axes is located, wherein the size of the nozzle opening formed is determined by extending the walls of the jet-forming passages surrounding the cavity to substantially the vertical plane where the internal side of said nozzle opening is formed, and wherein the external side of the nozzle opening lies on a flat surface; wherein the jet-forming passages and cavity are formed as slotted channels in a conical bore in the nozzle head, which slotted channels lead to the cavity and the nozzle opening in the nozzle head, and wherein a conical plug is inserted into the nozzle head so as to abut said conical bore and close the slotted channels along their sides to form the jet-forming passages.

Claim 3

A spray nozzle for spraying liquid particlEs from aerosol containers, comprising: a. a plurality of converging jet-forming passages directing the flow of streams of fluid; b. a cavity positioned at the location of the convergence of the passages where the streams of fluid meet, wherein the cavity is defined by the juncture of the walls of the jet-forming passages and the extending walls of the jet-forming passages that do not meet; and c. a nozzle opening for expelling the converging streams of fluid, wherein the internal side of said opening is formed at substantially the point where the axes of the jet-forming passages intersect if the axes are projected onto a plane in which one of the axes is located, wherein the size of the nozzle opening formed is determined by extending the walls of the jet-forming passages surrounding the cavity to substantially the vertical plane where the internal side of said nozzle opening is formed, and wherein the external side of the nozzle opening lies on a flat surface; which spray nozzle is located in a nozzle head, wherein the nozzle head has a conical bore and nozzle opening on one side, wherein the jet-forming passages and cavity are formed as slotted channels in a conical section of a plug, and wherein the plug is inserted into the nozzle head such that the conical section abuts the conical bore to close the sides of the slotted channels to form the jet-forming passages and cavity which lead to the nozzle opening.

Claim 4

A spray nozzle for spraying liquid particlEs from aerosol containers, comprising: a. a plurality of converging jet-forming passages directing the flow of streams of fluid; b. a cavity positioned at the location of the convergence of the passages where the streams of fluid meet, wherein the cavity is defined by the juncture of the walls of the jet-forming passages and the extending walls of the jet-forming passages that do not meet; and c. a nozzle opening for expelling the converging streams of fluid, wherein the internal side of said opening is formed at substantially the point where the axes of the jet-forming passages intersect if the axes are projected onto a plane in which one of the axes is located, wherein the size of the nozzle opening formed is determined by extending the walls of the jet-forming passages surrounding the cavity to substantially the vertical plane where the internal side of said nozzle opening is formed, and wherein the external side of the nozzle opening lies on a flat surface; which spray nozzle is located in a nozzle head, wherein the nozzle head has a conical bore and nozzle opening on one side, wherein the jet-forming passages and cavity are formed as slotted channels in a conical section of a plug, and wherein the plug is inserted into the nozzle head such that the conical section abuts the conical bore to close the sides of the slotted channels to form the jet-forming passages and cavity which lead to the nozzle opening.

Claim 5

A spray nozzle for spraying liquid particles from aerosol containers, comprising: a. a plurality of converging jet-forming passages directing the flow of streams of fluid; b. a cavity positioned at the location of the convergence of the passages where the streams of fluid meet, wherein the cavity is defined by the juncture of the walls of the jet-forming passages and the extending walls of the jet-forming passages that do not meet; and c. a nozzle opening for expelling the converging streams of fluid, wherein the internal side of said opening is formed at substantially the point where the axes of the jet-forming passages intersect if the axes are projected onto a plane in which one of the axes is located; said spray nozzle including means defining a bore and a nozzle opening at one end of the bore, means providing a plug, said plug being disposed within the bore of said defining means, said bore and said plug defining the jet-forming passages therebetween.

Claim 6

A spray nozzle for spraying liquid particles from aerosol containers, comprising: a. a plurality of converging jet-forming passages directing the flow of streams of fluid; b. a cavity positioned at the location of the convergence of the passages where the streams of fluid meet, wherein the cavity is defined by the juncture of the walls of the jet-forming passages and the extending walls of the jet-forming passages that do not meet; and c. a nozzle opening for expelling the converging streams of fluid, wherein the internal side of said opening is formed at substantially the point where the axes of the jet-forming passages intersect if the axes are projected onto a plane in which one of the axes is located; said spray nozzle including means defining a bore and a nozzle opening at one end of the bore, means providing a plug, said plug being disposed within the bore of said defining means, said bore and said plug defining the jet-forming passages therebetween.

Claim 7

A nozzle head in accordance with claim 3, wherein the jet-forming passages converge at an angle from about 30* to about 160*.

Claim 8

A spray nozzle in accordance with claim 3 wherein said plug abuts the bore and said passages are predominantly defined by slots in said plug.

Claim 9

A spray nozzle in accordance with claim 3 wherein channels are provided in said bore-defining means and said plug abuts said bore-defining means to close said slots and define said passages.

Claim 10

A spray nozzle in accordance with claim 3, wherein there are two jet-forming passages whose axes lie in parallel planes such that the distance between the planes at the internal side of the nozzle opening is less than 10 percent of the average diameter of the jet-forming passages, and wherein such spray nozzle produces a triangular spray flow pattern.

Claim 11

A nozzle head in accordance with claim 3, wherein there are two jet-forming passages whose axes lie in parallel planes, such that the following ratio has a value of from .35 to .50, wherein A1 and A2 are the jet-forming passage cross-sectional areas at the point where they enter the cavity and wherein such spray nozzle produces a uniform mass spray flow pattern.

Claim 12

A nozzle head in accordance with claim 3, wherein the jet-forming passage converge at an angle of from about 35* to 145*.