Agricultural drip tape
Patent 5688072 Issued on November 18, 1997. Estimated Expiration Date: 
December 14, 2015. 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 14, 2015. 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 2059927 3361359 3736755 3870236 3896999 3903929 Irrigation means for the uniform distribution of liquid Irrigation apparatus Integral drip irrigation system Irrigation hose and method for its construction InventorsAssigneeApplicationNo. 570014 filed on 12/14/1995US Classes:405/43, Porous or apertured pipe, flume, or tileway239/542, CONDUIT OR NOZZLE ATTACHED IRRIGATION-TYPE DECELERATOR405/36, DRAINAGE OR IRRIGATION405/45PorousExaminersPrimary: Taylor, Dennis L.Attorney, Agent or FirmInternational ClassE02B 013/00AbstractDrip tape for below or above ground irrigation includes a sheet of material formed into a tube by overlapping opposite side edges of the sheet and bonding the side edges along a longitudinal seam thereby forming a primary flow path. A strip of transparent material is bonded to an interior surface of the sheet prior to seaming, at a location remote from the longitudinal seam so as to define, in combination with the tape wall, a plurality of secondary flow paths within the primary flow path. Each secondary flow path includes an inlet region, a turbulence inducing region and an outlet region; the inlet region including a plurality of inlets in the second strip connecting the primary flow path to the secondary flow path upstream of the turbulence inducing region; the outlet region including an outlet in the tube connecting the secondary flow path to atmosphere downstream of the turbulence inducing region. | |
