Irrigation device
Patent 4061272 Issued on December 6, 1977. Estimated Expiration Date: 
December 6, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 6, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 92298 2798768 2807505 3021642 3361359 3419455 3465529 3613309 3901448 InventorApplicationNo. 05/641739 filed on 12/18/1975US Classes:405/45, Porous156/78, Foaming239/145, POROUS OR EXTERNAL WICK DISCHARGE MEANS239/450, ADJOINED CONTIGUOUS ELONGATED SPRAY CONDUITS (E.G., PARALLEL CONDUITS)239/542, CONDUIT OR NOZZLE ATTACHED IRRIGATION-TYPE DECELERATOR264/46.6Against inner surface of a hollow preform or solidified layerExaminersPrimary: Blunk, Evon C.Assistant: Kashnikow, Andres Attorney, Agent or FirmAbstractAn irrigation device in the form of an elongated conduit of predetermined length wherein the conduit comprises a one piece wall of plastic material formed by extrusion in a continuous length. The conduit comprises at least two compartments having specific relative dimensions and disposed in fluid communication with one another wherein the configuration and disposition of the two compartments are defined by the configuration of the single wall portion which is formed from the single piece of extruded material. Dispersion means in the form of a strip of elongated liquid permeable material is mounted within one of the compartments and configured to extend outwardly to the exterior of the conduit whereby liquid is dispersed through the two compartments to the exterior of the conduit through the liquid permeable dispersion element by a capillary-type action. | |
