Flat textile reinforcing strip for ducts and the duct thus reinforced
OwnerJean-Michel Gerez, Christophe Dieumegardinventors
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Abstract
The invention relates to a flat textile strip which is made from, for example, a reinforced thermoplastic material. The inventive strip is wound around a tube in order to act as armour for a duct through which a pressurised fluid flows. The invention is characterised in that said strip (10) comprises a central piece (11) having a more or less rectangular section and two longitudinal edges (12) which are thinner than the central piece.
Claims11
A flat textile tape, intended to produce, by winding around a tube, the armor for a pipe serving to convey a pressurized fluid, characterized in that the tape (10) is formed from a central section (11) of approximately rectangular cross section and from two longitudinal edges (12) that are thinner than the central section.
The tape as claimed in either of the preceding claims, characterized in that the width of the edges (12) is between 5% and 15% of the width of the central section (11).
The tape as claimed in any one of the preceding claims, characterized in that the weave density of the tape is equal to or greater than 39%.
The tape as claimed in any one of the preceding claims, characterized in that it is formed from filament rovings held together by binding means and a thermoplastic bonding material.
A pipe for transporting a pressurized fluid, consisting of an internal tube (2) coated with at least one ply (3, 4) of flat textile tapes (10) wound helically on the tube (2), characterized in that the tapes (10) are formed from a central section (11) having an approximately rectangular cross section and from two longitudinal edges (12) that are thinner than the central section, the tapes (10) being wound with at least partial overlapping of the lateral edges (12).
Dependencies are inferred from the claim text.