Patent ID: 8459698
Filing Date: 2013-06-11
Classification: F16L

Abstract:
1. An irrigation pipe system, comprising: a tubular coupler member having at least one open end adapted for connection to a fluid transport pipe, the tubular coupler member having a tubular riser adapter member in fluid communication with a central region thereof, the tubular riser adapter member having an externally threaded surface and an annular inner wall; a riser cap member having a central tubular section defining an unthreaded, generally cylindrical bore for receiving a sprinkler riser at a top end thereof, an annular projection extending from the central tubular section and having an outer surface and a bottom end, and an annular skirt coaxial with the central tubular section and having an inner diameter larger than an inner diameter of the central tubular section, the annular skirt having an inner surface having internal threads threadably connectable with the externally threaded surface of the tubular riser adapter member; a seal; whereby the riser cap member is connected to the tubular riser adapter member of the tubular coupler member by inserting the bottom end inside the tubular riser adapter member, such that there is contact between the annular inner wall and the outer surface of the annular projection, and threadably connecting the internal threads of the annular skirt to the externally threaded surface of the tubular riser adapter member, with the seal disposed between the tubular riser adapter member and the riser cap member; and an annular flange extends radially from an outer surface of the central tubular section between the top and bottom ends, wherein the annular skirt depends from the annular flange.