Liquid distribution device

Claim 1

A turf irrigation device adapted to be connected to a pressurized liquid source comprising a body member having a substantially unobstructed hollow chamber therein having upper and lower portions, said chamber being defined at least in part by one or more walls, a single liquid inlet means in the lower portion of the chamber for passing a jet of water upwardly into said chamber, a plurality of liquid discharge ports in the upper portion of the chamber walls, at least two of said ports being disposed radially from a vertical axis of the chamber such that fluid exits along an axis angularly disposed from said vertical axis, said chamber having an enclosed upper wall at a top portion of the chamber precluding passage of a substantial portion of fluid out from the chamber in a direction parallel to the vertical axis of the chamber, the upper portion of said chamber having substantially curvilinear horizontal and vertical cross-sections, the lower portion of the chamber having a curvilinear horizontal cross-section, said upper and lower portions being connected by smooth walls having substantially no discontinuity, the total cross-sectional area of the discharge ports being at least about 1.4 times greater than the cross-sectional area of the inlet means, whereby a rotating mass of water is created in the chamber, producing rapidly moving discharges of discrete droplets from the discharge ports.