Patent ID: 6648241
Filing Date: 2003-11-18
Classification: B05B,Y10S

Abstract:
An adapter for extending the life of a sprinkler system, which was installed to spray at an original grade, including a standard sprinkler head body having a spray insert cavity with an original spray insert screwed into said spray insert cavity with threads that will not mate with standard pipe threads, said adapter comprising:a. a riser tube, having an upper end and a lower end, said lower end carrying threads which will mate with the spray insert cavity in said standard sprinkler head body; and b. a collar, adapted to mate with said upper end, mated with said upper end; said collar having a web portion, said web portion having a opening through it designed to accept a pop-up subassembly without rotation and with little play and allow said pop-up subassembly to rise and fall a short distance; whereby said riser tube can be installed in said spray insert cavity in place of said original spray insert and said pop-up subassembly can be installed through said web portion so that said sprinkler system will sprinkle an increased grade.