Patent ID: 8205811
Filing Date: 2012-06-26
Classification: B05B

Abstract:
1. In a rotating sprinkler head valve, the improvement comprising: a cone member having a central aperture; a rotor having a central aperture, said rotor being rotatable with respect to said cone member; a generally tubular bottom helix member having a top end and a bottom end, said generally tubular bottom helix member having a longitudinal aperture therethrough, an upper helical surface extending substantially completely around the upper narrow tubular section, and a vertical flag extending upwardly from the upper helical surface of the bottom helix member; a tubular base top member including a downwardly extending inner tubular portion and a lower interior edge surface with a helical lower surface forming an adjustable helical aperture in cooperation with said bottom helix member, said base top member including a cylindrical aperture therethrough including a vertical flag extending inwardly and configured to engage said vertical flag of said bottom helix member, and said base top member having an interior surface defining a recessed inner helical lip along said lower interior edge surface of the downwardly extending inner tubular portion, said recessed inner helical lip configured to receive said upper helical surface of the bottom helix member and said recessed inner helical lip being rotatable with respect to said upper helical surface of the bottom helix member for adjusting said helical aperture; and a cylindrical shaft having an upper end and a lower end, said cylindrical shaft extending vertically and axially through said central aperture of said cone member, said central aperture of said rotor, and said longitudinal aperture of said bottom helix member, and said rotor being rotatable with respect to said cylindrical shaft.