Towable nonconductive pipe adapter for a sprinkler having laterally extending surfaces

A light-weight, towable, non-conductive, mechanically locking sprinkler fitting fluidly connected between a pair of irrigation pipes, said combination comprising:

• a pair of irrigation pipes having at least one free, open end, each of said open ends having an annular recess located along an exterior surface thereof;
• a polymeric tubular fitting member having first and second open ends for receiving said open ends of said irrigation pipes, said tubular fitting member including a laterally extending, bevelled lower surface for permitting said fitting member to be slid across a field without tipping;
• said tubular fitting member also including an orifice for receiving a sprinkler riser;
• said tubular fitting member including a pair of annular recesses located along its inner surface which correspond with said annular recesses located on the exterior surfaces of said irrigation pipes to form a pair of annular cavities;
• a pair of polymeric flexible splines inserted into said pair of annular cavities to form a pair of mechanical locks between said irrigation pipes and said tubular fitting member;
• and
• gasket means for providing a fluid tight seal between said irrigation pipes and said tubular fitting member.

A towable, non-conductive, mechanically locking sprinkler fitting, comprising a polymeric tubular fitting member having first and second open ends for mating with a pair of irrigation pipes, said tubular fitting member including a laterally extending, bevelled lower surface for permitting said fitting member to be slid across a field without tipping;

• a sprinkler riser orifice located between said first and second open ends of said tubular fitting member;
• said tubular fitting member having a pair of annular recesses located along the inner surface near said first and second open ends;
• and
• a pair of polymeric flexible splines for inserting into said annular recesses when said first and second irrigation pipes are inserted into said polymeric tubular fitting member.