Irrigation Saddle Annular Seal Face
AssigneeXCAD Valve and Irrigation, Inc.
InventorsDon D. Duffin, Roger M. Duffin
Life of this patent
Estimating the term…
Abstract
A pipe coupler having a saddle for connecting to a riser adapter for use in an irrigation system to distribute water. A dynamic seal is positioned in a circumferential channel of the riser adapter on the outer surface of a flange or projection that is positioned into the circular mount of the saddle. In response to water pressure against the dynamic seal, the dynamic seals the connection between the riser adapter and the saddle by sealing against the annular sealing face on the inner circumference of a circular mount of the saddle. The dynamic seal is an O-ring in preferred embodiments.
Claims13
A pipe coupler having a saddle and riser adapter combination comprising:
- a pipe coupler comprising a cylindrical tube having at least one open end configured for connection to an irrigation pipe system, said pipe coupler having a pipe coupler saddle positioned on a top of said pipe coupler, said saddle having a circular mount positioned above an aperture in the top of said cylindrical tube, said aperture being in fluid communication with a central region of said saddle such that water may flow from the irrigation pipe system into the coupler and through the aperture, said circular mount having an internal annular face, an external annular face, and an end face positioned at a top of the circular mount, wherein said internal annular face comprises an annular sealing face free of internal threading;
- a riser adapter threadedly connected to said saddle, said riser adapter comprising a hollow main body that is cylindrical in shape and configured for water flowing through said circular mount to flow through said riser adapter to a sprinkler riser, said hollow main body comprising an external circumferential surface positioned adjacent to said annular sealing face, said external circumferential surface defining a dedicated circumferential channel;
- and
- a dynamic seal positioned within said dedicated circumferential channel and configured such that water flow through said circular mount into said riser adapter causes said dynamic seal to seal against said annular sealing face.
Dependencies are inferred from the claim text.