Impulse sprinkler with deflector

An impulse sprinkler for step-by-step watering and capable of part-circle operation, said sprinkler comprising:

• a base;
• a main body including a nozzle for dispensing water and a frame defining a window, said frame including a top wall;
• means pivotally mounting said main body on said base enabling said main body to rotate about a substantially vertical axis;
• an impulse arm for deflection by water dispensed by said nozzle;
• means pivotally mounting said arm on said main body so that said arm extends through said window and is rotatable about said substantially vertical axis;
• spring means disposed in said window for biasing said impulse arm to a position wherein it will be deflected by water from said nozzle;
• and an elongate deflector pivotally carried by said main body so that said deflector is rotatable about a substantially horizontal axis, said deflector being of one-piece molded thermoplastic construction and including a deflector head overlying said nozzle, a tail portion for grasping by the user, and an intermediate portion supported by said main body, said deflector being pivotable through a range of positions between a maximum deflection position in which said head is adjacent said nozzle and a minimum deflection position in which said head is remote from said nozzle, said main body and said intermediate portion together comprising holding means for holding said deflector in a predetermined one of said positions, said holding means comprising a post extending upwardly from said top wall, said holding means further comprising an opening in said intermediate portion receiving said post, said intermediate portion including an upper wall with a pair of spaced interior arms, dependent from said upper wall, defining said opening and receiving said post in an interference fit.