A hose body is formed, or provided, to a predetermined length and so as to be continuous and contiguous. Articulation means are formed about and in close proximity to the hose body. This is accomplished by forming a wire helix about the hose body so as to either have a different number of turns per unit...http://www.google.fr/patents/US4830059?utm_source=gb-gplus-shareBrevet US4830059 - Relatively articulatable hose
