Abstract: An irrigation conduit comprising an extruded tube having a peripheral wall and at least one elongated passage and an elongated supply tube having an elongated supply passage. The supply tube is formed of sheet material joined together along longitudinally extending portions to form a seam. A region of the sheet material extends at least part way around the perimeter of the extruded tube, and the extruded tube is retained on such region of the sheet material. Transfer ports extend between the passages of the two tubes and discharge ports extend from the passage of the extruded tube to the exterior of the irrigation conduit.

Abstract: A drip feed device for irrigation purposes comprising a body having an inlet on one side and an annular wall on the other, engaged by a cup having an outlet on one side and an annular wall on the other, to engage the annular wall on the body and housing in a chamber formed between them a button having circular flow paths on each side with flow-restricting baffles which overlap in the flow paths to give counter direction flow around the baffles.

Abstract: An irrigation fitting cooperable with a tool to penetrate the wall of an irrigation conduit comprising a body having a flow passage therein opening at a first location adjacent one end of the body and at a second location spaced from the first location. One end of the body is shaped to form a piercing point for penetrating the wall of the irrigation conduit. A shoulder is provided on the body intermediate the first and second locations and facing in a direction so that a tool can act against the shoulder to force the piercing point to penetrate the wall of the irrigation conduit. Orienting surfaces are provided on the body adjacent the shoulder for cooperating with the tool to orient the irrigation fitting relative to the tool.

Abstract: A butterfly sprinkler in which a rotating head has an upwardly projecting shaft to fit in a bearing supported by arms. The shaft is of stepped configuration with the bearing being of similar configuration to thus form a skirt about the bearing. A nozzle for the sprinkler is provided with a resilient flow regulator arranged in such a way that as pressure of the water fed to the sprinkler increases, the regulator is distorted to reduce the size of an orifice to limit the amount of water flowing to a relatively uniform rate irrespective of changes of pressure.

Abstract: A coupling for flexible conduit of irregular configuration having an inner member adapted to be at least partially received within the flexible conduit. The inner member has a first conical surface. A locking member is retained on the inner member and is provided with a second conical surface which tapers radially inwardly and terminates in substantially a knife edge. When the inner member is received within the flexible conduit, the locking member may be moved such that the flexible conduit is squeezed between the knife edge and the first conical surface to seal the coupling to the conduit.

Abstract: An irrigation conduit comprising an extruded tube having a peripheral wall and at least one elongated passage and an elongated supply tube having an elongated supply passage. The supply tube is formed of sheet material joined together along longitudinally extending portions to form a seam. A region of the sheet material extends at least part way around the perimeter of the extruded tube, and the extruded tube is retained on such region of the sheet material. Transfer ports extend between the passages of the two tubes and discharge ports extend from the passage of the extruded tube to the exterior of the irrigation conduit.

Abstract: A rotatable sprinkler comprising a plastic body having a passage extending through the body and a shoulder within the passage. The body is connectable to a source of water under pressure. A plastic sprinkler head is rotatably received within the passage and is unsupported externally of the housing. The sprinkler head has a retainer integral with the sprinkler head which forms a snap fit with the shoulder to retain the sprinkler head within the passage of the body. A restricted orifice in the passage of the body directs water at relatively high velocity into and through a passage in the sprinkler head. The passage in the sprinkler head is configured so that the sprinkler head is rotated by the flow of water through the sprinkler head.

Abstract: A conduit for drip irrigation systems having a wall of a pierceable material characterized by a series of inwardly formed dimples along the length thereof and arranged to be pierced by a piercing member on an off-take or sprinkler, the dimples having a selected wall thickness in relation to the wall of the conduit, the conduit being optionally provided with ribs at the dimples to give further securing means and optionally including a tension wire or member for support.

Abstract: A continuous drip irrigation tube having a series of longitudinally extending capillary tubes formed on its wall integrally with said wall.