Patent ID: 7708212

Claim:
A nozzle assembly comprising: a stem slidably coupled with a retainer such that the stem is slidable in relation to the retainer between an extended position and a retracted position, the stem comprising at least one cam portion, the stem further comprising a nozzle in a first end, the nozzle in fluid communication with a second end of the stem; an upper washer slidably coupled with a washer race extending lengthwise along the stem, the upper washer comprising an upper washer groove in a bottom side of the upper washer; a lower washer coupled with the second end of the stem, the lower washer comprising a lower washer groove in a top side of the lower washer and at least one inwardly extending projection configured to engage with the washer race in the stem; and a coil spring element disposed around the stem and seated in the upper washer groove and the lower washer groove, such that the spring element seated in the lower washer groove biases the upper washer toward and against the retainer in both the extended and retracted positions.