Stream-controlling device for faucets

A stream-controlling device for faucets, which comprises a generally cylindrical hollow casing having bottom and side walls and an annular threaded upper portion adapted for securing the casing to an annular threaded portion of a faucet, a flow restrictor of circular form mounted in said casing and forming with said bottom and side walls a circular chamber, the flow restrictor having a central first orifice for passage of liquid from the faucet to said chamber, said restrictor having a conical portion forming a conical upper surface sloping downwardly and inwardly toward said first orifice, said conical portion also forming a conical lower surface sloping upwardly and outwardly from said first orifice, said bottom wall having an imperforate central conical recess opposite said orifice, said bottom wall and the lower end of said conical lower surface defining an annular second orifice, the conical wall of said recess being arranged to deflect liquid from said first orifice radially outward through said second orifice, the lower surface of the restrictor forming with said bottom and side walls an annular sub-chamber of said chamber for receiving liquid from said second orifice, said sub-chamber increasing substantially in height in the radial direction from the second orifice to said side wall, the conical wall of said recess forming with the horizontal an angle no greater than the angle formed by said conical lower surface with the horizontal, said bottom wall having a multiplicity of holes located radially outwardly beyond said imperforate central conical recess and at different radial distances from said conical recess and constituting in sum total a third orifice for discharging liquid from said casing, said holes extending through said bottom wall in a downward direction generally parallel to one another, and said first, second and third orifices being of progressively increasing throughflow area.