Patent ID: 8308081
Filing Date: 2012-11-13
Classification: E04H

Abstract:
1. A swimming pool cleaning head assembly comprising: a cam housing; a cam assembly removably coupled to the cam housing, the cam assembly comprising an upper section, a lower section and a rotatable section slidably disposed between the upper section and the lower section and rotatable between a first extent and a second extent, the cam assembly comprising a plurality of saw tooth members; and a stem extending through the cam assembly, the stem comprising a pin slidably engaged with the plurality of saw tooth members, the pin configured to incrementally rotate the stem clockwise in intermittent contact with the saw tooth members and the rotatable section of the cam assembly during vertical translation of the stem through water pressure force, and slidably rotate the rotatable section of the cam assembly from its first extent to its second extent; wherein the cam assembly is configured to automatically reverse the incremental rotation of the stem to counterclockwise when the rotatable section of the cam assembly is rotated to its second extent.