Riser cap and irrigation piping system using same
First Claim
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.
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0 Petitions
Accused Products
Abstract
A polymeric riser cap member includes a central tubular section defining a generally cylindrical bore for receiving a sprinkler riser, the central tubular section having open top and bottom ends, 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 has an inner surface having internal threads threadably connectable with the externally threaded surface of a tubular riser adapter member of a tubular coupler. The bottom end of the central tubular section has an annular projection disposed opposite and spaced from a portion of the annular skirt. The riser cap member includes an annular recess adapted to receive a seal located in a wall extending laterally between the annular skirt and the annular projection.
25 Citations
12 Claims
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1. An irrigation pipe system, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification