Patent ID: 9238238
Filing Date: 2016-01-19
CPC Classification: B05B

Claim Text:
1. An apparatus for restricting flow through a rotating sprinkler head valve, comprising: 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 narrow tubular section at the top end, 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 generally tubular strainer adapter connected with said bottom helix member, said generally tubular strainer adapter having an interior tubular chamber extending through said generally tubular strainer adapter, an internal transverse slotted plate extending transversely across said interior tubular chamber, said internal transverse slotted plate including at least one slot configured to allow flow through the strainer adapter.