B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
154/53, 18/965
B29C 63/28 (2006.01) B29C 63/30 (2006.01) B29C 63/34 (2006.01) E03F 3/06 (2006.01) F16L 55/165 (2006.01)
Patent
CA 2014902
ABSTRACT A method and a device for the construction and/or the reconditioning of pipelines and conduits, by applying or forming around a sheath of impervious flexible material, a tubular member made from fabric or glass fibers or any other suitable material impregnated with a hardening resin. The impregnated tubular member is expanded and shaped by means of at least one expander formed by a tubular ring of resilient flexible material, of cylindrical shape, which has been pressurized so as to cause a fluid-tight squashing of its axial bore. By exerting a hydraulic or pneumatic pressure against one end of said expander, the latter is advanced along said tube with a rotary-translatory motion.
Marini Ermenegildo
Marini Roberto
Marini Ermenegildo
Marini Roberto
Marks & Clerk
LandOfFree
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