Patent ID: 7360718
Filing Date: 2008-04-22
Classification: B05B,F16L,Y10S

Abstract:
1. A sprinkler comprising: a molded elongated body portion configured as an irrigation sprinkler housing and having a side wall defining an internal cavity; an inlet defined by the side wall to permit access to the internal cavity; a tubular coupling extending from the elongated body portion at the inlet, the tubular coupling being configured to be coupled to an irrigation supply line and the side wall forming an annular collar inside the tubular coupling about the inlet; a molding knit line extending the side wall of the elongated body portion in a longitudinal direction and being bisected by the inlet; a reinforcement structure including a reinforcing rip and a crosspiece spanning the inlet; an intersection between the crosspiece and the side wall at the annular collar including a generally curvilinear transition between the crosspiece and the annular collar effective to reduce stress concentrations; and the reinforcement structure coinciding with at least a portion of the molding knit line along the side wall and joining both sides of the knit line on opposite sides of the annular collar at the inlet to increase the strength of the elongated body upon the internal cavity being subjected to a pressurized fluid.