B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
26/155
B29C 47/02 (2006.01) A01G 25/02 (2006.01) B29C 47/00 (2006.01) B29C 47/28 (2006.01) B29C 47/90 (2006.01) A01G 25/00 (2006.01)
Patent
CA 1314132
ABSTRACT A process and installation for producing a drip irrigation conduit having discrete internally located emitter units bonded at axially spaced apart locations of an internal surface thereof, wherein the irrigation conduit is continuously extruded from an extrusion cross-head at a first outer diameter and a first linear velocity and is drawn off through a calibrator unit to a second and lesser outer diameter at a second and greater linear velocity greater than the first linear velocity, the emitter units being continuously supplied on a carrier member which extends from within the extruder cross-head to the region of an inlet of the calibrator unit. Whilst so supported the emitter units are accelerated so as to attain an emitter unit linear velocity substantially equal to said second linear velocity and are displaced at this velocity into contact with the extruded conduit where the latter has substantially attained its second linear velocity and therefore continue to be displaced whilst still supported in contact with the extruded conduit until the emitter unit is heat welded.
601012
Hydro-Plan Engineering Ltd.
Mehoudar Raphael
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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