Patent ID: 6042021
Filing Date: 2000-03-28
Classification: B05B,Y10S

Abstract:
A sprinkler, comprising:a housing having an outlet end;a head including a nozzle for ejecting a stream of water;means for mounting the head at the outlet end of the housing for angular rotation about vertical axis;means mounted in the housing for driving the head about the axis;arc adjustment means mounted in the housing for pre-setting at least one of a pair of end limits of rotation of the head;means for causing the rotation of the head to reverse a direction of rotation thereof when a rotational position of the head reaches each of the end limits so that the stream of water will travel through a predefined angular sector; andan arc adjustment tool engaging member mounted in the head for receiving a portion of an arc adjustment tool and cooperating with the arc adjustment means to permit manual rotation of the tool to pre-set the one end limit of rotation of the head, the arc adjustment tool engaging member being moveable between an extended position in which the member is disengaged with the arc adjustment means and a retracted locked position in which the tool need not be held down during rotation of the tool in order to adjust the one end limit.