Patent References 3885743 Flow restrictor and trickle emitter Flow reducing devices particularly useful as drip emitters for drip irrigation Drip or trickle emitter Patent #: 4281798 InventorApplicationNo. 06/251157 filed on 04/06/1981US Classes:239/271, WITH NOZZLE OR FLOW LINE ATTACHED PENETRATING MEANS239/542CONDUIT OR NOZZLE ATTACHED IRRIGATION-TYPE DECELERATORExaminersPrimary: Love, John J.Assistant: Sobel, Paul A. Attorney, Agent or FirmInternational ClassA01G 25/02 (20060101)AbstractA drip irrigation emitter having a body with internal structure for reducing fluid pressure to provide a low pressure trickle output and an inlet member providing a passage for water to the internal structure and adapted to connect the emitter to a supply hose. The inlet member has a frusto-conical barb portion integral with a neck portion that extends between the large end of the barb portion and the emitter body. A cylindrical portion extending from the small end of the barb portion, which has at least one inlet opening, is usable as a mechanical punch to enable the emitter to be attached with one simple operation to a plastic irrigation hose or lateral without prepunching holes therein. | |