Pattern adjustable flow nozzle

A spray nozzle for attachment to a sprinkler having an open end attachable to a fluid source under pressure and an opposite coupling end, the spray nozzle comprising:

• an inner tubular body having an open coupler end and an opposite discharge end having an inner discharge orifice allowing fluid communication through the opposite end;
• an outer tubular sleeve having an open end and an opposite discharge end, the outer tubular sleeve overlapping said inner tubular body and axially mounted on said inner tubular body and continuously rotatable around an axis extending lengthwise of said inner tubular body and outer tubular sleeve wherein the discharge end of the inner tubular body has a second inner discharge orifice and wherein the discharge end of the outer tubular sleeve has an substantially circumferential opening which allows fluid communication through the second inner discharge orifice during the rotation of the outer tubular sleeve;
• an outer discharge orifice disposed on the discharge end of the outer tubular sleeve, wherein when the outer tubular sleeve is rotated relative to the inner tubular body, a fluid passage is formed with a variable output shape from the inner orifice through the outer discharge orifice, and wherein the inner discharge orifice and the outer discharge orifice overlap over all rotational adjustments;
• and
• a flow cavity on the discharge end of the inner tubular body providing fluid communication between the circular discharge orifice and the outer discharge orifice, wherein a constant distance is maintained between the outer tubular sleeve and the discharge end of the inner tubular body along the axis of rotation when the outer tubular sleeve is rotationally adjusted.

A flow nozzle connectable to a fluid source, the flow nozzle comprising:

• an inner tubular body having an output end and a front surface;
• an outer tubular sleeve overlapping said inner tubular body and axially mounted on said inner tubular body for relative rotational adjustment around an axis extending lengthwise of said inner tubular body and outer tubular sleeve wherein the outer tubular sleeve has a plurality of grooves disposed on the outer surface of said outer tubular sleeve, said grooves aligned parallel to the axis of said outer tubular sleeve;
• an outer discharge orifice disposed on one end of the outer tubular sleeve adjacent to the output end of the inner tubular body;
• a circular discharge orifice through the output end, wherein the circular discharge orifice and the outer discharge orifice overlap over all rotational adjustments;
• and
• a circular flow cavity on the front surface of the output end providing fluid communication between the circular discharge orifice and the outer discharge orifice, wherein a constant volume of the flow cavity is maintained when the outer tubular sleeve is rotationally adjusted.