Localized suction device with a sucking inlet head carried by a tubular duct end orientable in space

A device suitable to constitute at least a portion of tubular duct means comprising a plurality of rigid tubular sections and a plurality of unitary flexible tubular sections, the rigid tubular sections being alternated with the flexible tubular sections, articulation means including respective pairs of brackets provided with fastening collars securing them respectively onto portions of respective ones of said rigid tubular sections in the vicinity of and spaced from ends thereof and on whose respective skirts defined by surfaces between said ends and respective ones of said fastening collars are connected opposite ends of an intermediate flexible tubular section of said plurality of unitary flexible tubular sections, each articulation means having at least one pivotal friction connection means between brackets of each of said pair of brackets which connection means defines a respective first axis, and wherein at least one of said articulation means includes means pivotally coupling one of its said fastening collars to one bracket of its said pair of brackets along a second axis substantially perpendicular to said first axis of said at least one articulation means.