초록 ▼

A fixed spray sprinkler nozzle has adjustable arc coverage. The nozzle has a nozzle body with sideward facing water discharge slots including a bottom slot and a top slot. Flow blocking skirts control the open length of each of the slots. The bottom slot is fixed on the nozzle body, but the top slot

A fixed spray sprinkler nozzle has adjustable arc coverage. The nozzle has a nozzle body with sideward facing water discharge slots including a bottom slot and a top slot. Flow blocking skirts control the open length of each of the slots. The bottom slot is fixed on the nozzle body, but the top slot is rotatable on the nozzle body, in concert with the opening or unblocking of the bottom slot's length, from a position overlying the bottom slot to a position directed in an opposite direction from the bottom slot. When the bottom slot is fully open, the top slot may then be progressively opened over its entire length. Thus, the arc coverage can be infinitely adjusted over the combined circumferential length of both the bottom and top slots together. The slots have a grooved bottom wall to provide smooth water flow and good pattern definition at each side of the selected arc.

대표청구항 ▼

[ I claim:] [1.] An adjustable arc fixed spray sprinkler nozzle, which comprises:a nozzle body having a top and sides with the nozzle body having an axis;a plurality of water discharge slots provided in the sides of the nozzle body with the slots pointing outwardly relative to the axis of the nozzle

[ I claim:] [1.] An adjustable arc fixed spray sprinkler nozzle, which comprises:a nozzle body having a top and sides with the nozzle body having an axis;a plurality of water discharge slots provided in the sides of the nozzle body with the slots pointing outwardly relative to the axis of the nozzle body such that water is discharged to the sides of the nozzle body through the slots, wherein each slot is horizontal and extends around only a portion of the nozzle body; anda plurality of rotatable skirts carried on the nozzle body extending parallel to the axis of the nozzle body with one skirt being in abutment with each water discharge slot, each skirt being progressively rotatable from a first position in which the skirt imposes minimum interference with the water discharge slot to a second position in which the skirt imposes maximum interference with the water discharge slot, whereby the arc coverage provided by the water flow through the water discharge slots is controlled by the position of the skirt for each slot.