B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 1/04 (2006.01) B29D 99/00 (2010.01) B29B 11/04 (2006.01) B29C 53/04 (2006.01) B29C 70/86 (2006.01)
Patent
CA 2046354
IN THE C A N A D I A N PATENT AND TRADEMARK OFFICE PATENT APPLICATION Entitled : Method for producing fibrous preforms formed of superposed layers and having small radii of curvature, for the manufacture of composite material components in the names of : Jean-Pierre CIAIS Claude GRONDIN Jacques ADAN Assignee : SOCIETE EUROPEENNE DE PROPULSION ABSTRACT OF THE DISCLOSURE In a curved portion of the preform having a radius of curvature that is smaller than the thickness of the superposed layers (12), an insert (14) is introduced between two of the layers. The insert comprises a first curved surface (14a) having a first radius of curvature substantially equal to that of a surface of the layer adjacent an outer side of the preform, and a second curved surface (14b) having a second radius of curvature greater than the first radius of curvature and substantially equal to that of a layer adjacent an inner side of the preform. Figure 2.
Adan Jacques
Ciais Jean-Pierre
Grondin Claude
Sim & Mcburney
Societe Europeenne de Propulsion
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