Patent ID: 8083158
Filing Date: 2011-12-27
Classification: B05B

Abstract:
1. A sprinkler comprising: a housing fitted with an inlet port connectable to a water supply line and extending into an inlet chamber, a hollow stem member with an inlet end thereof being in flow communication with said inlet chamber and an outlet end thereof being in flow communication with an irrigation head; a diaphragm seal sealingly fixed at peripheral boundaries thereof to the housing and sealingly articulated to the stem member and supporting the stem member at an essentially upright position, said diaphragm seal being deformable between a first position in which the irrigation head is retracted within the housing and a second position in which the irrigation head projects from and outside the housing, characterized in that said stem member is radially supported to enable only sliding displacement in an axial direction from the inlet chamber towards the irrigation head without any tilt or rotation, wherein the diaphragm is fully contained within the housing in both the first and second positions; and at least one guard portion configured to prevent insects and undesirable material from entering the sprinkler housing during said second position.