JAIN IRRIGATION SYSTEMS LTD. Patent applications |
Patent application number | Title | Published |
20120217324 | APPARATUS AND METHOD OF MANUFACTURING PRESSURE COMPENSATOR TYPE DRIP IRRIGATION TUBES WITH DESIRED MOLECULAR ORIENTATION AND TUBES OBTAINED THEREBY - A method for manufacturing high speed pressure compensator-type drip irrigation tubes and the tubes obtained thereby having absolute radial orientation of molecular chains, the orientation imparting strength as well as flexibility to the tube material. The said method comprises extruding a tube using a plurality of extruders; blowing up the extruded tube by introducing a pressure inside the tube relatively higher than the pressure outside the tube; drawing the blown tube simultaneously to the blowing of tube; flattening the blown tube by heat welding the collapsed halves together and forming a tape immediately, subsequent to the process of blowing and drawing the tube; extrusion of a bonding polymer on one border of the tape; printing flow channels into the hot and viscous bonding polymer; and forming a tube by lengthwise folding the tape and heat welding the overlapping borders together using the bonding polymer. | 08-30-2012 |
20110220238 | PIPE WITH INTEGRAL MALE AND FEMALE ENDS, A JOINT MADE USING THE SAME PIPE, AND PROCESSES OF MAKING THE PIPE AND THE JOINT - The invention describes easily attachable and detachable joints for use in pipe systems carrying pressured fluids. The pipes used for the purpose are made using thermoplastics, preferably polyolefin and provided with integrally formed male spigot end ( | 09-15-2011 |