| abstract |
THE INVENTION CONCERNS A FIBER REINFORCED SYNTHETIC RESIN PUMPING ROD, AND A PROCESS FOR MANUFACTURING THIS ROD. Said rod presents an elongated body 12 in which are embedded strands 32 of reinforcing fibers. AT EACH OF ITS ENDS, THIS BODY 12 INCLUDES A THREADED PART 14, 16 IN WHICH THE SAID STRANDS 32 ARE UNINTERRUPTED AND PROVIDED FOR THE ESSENTIAL IN THE PLANS PASSING THROUGH THE LONGITUDINAL AXIS OF THE ROD 10. ALL THESE STRANDS 32 EXTEND WITHIN THE LIMITS OF THE CONFIGURATION AND OF THE RIDGES 22A, 30A OF THE THREADS 22, 30. APPLICATION IN PARTICULAR TO THE BORING OF OIL WELLS |