The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 26, 2014
Filed:
Mar. 03, 2011
Sabato Inserra Imparato, Gragnano, IT;
Luigi Avagliano, Baronissi, IT;
Luigi Capasso, San Giorgio a Cremano, IT;
Emmanuele D'agostino, Naples, IT;
Luca Di Tommaso, Marano di Napoli, IT;
Gianni Iagulli, San Severo, IT;
Sabato Inserra Imparato, Gragnano, IT;
Luigi Avagliano, Baronissi, IT;
Luigi Capasso, San Giorgio a Cremano, IT;
Emmanuele D'Agostino, Naples, IT;
Luca Di Tommaso, Marano di Napoli, IT;
Gianni Iagulli, San Severo, IT;
Alenia Aeronautica S.p.A., Pomigliano d'Arco, Naples, IT;
Abstract
A beam of fiber-reinforced curable thermosetting composite material is preliminarily assembled in an uncured condition. The beam is placed between two forming tools, namely a lower and an upper tool, shaped in such a way as to give the lower and upper flanges a predetermined shape, at least one of the flanges having a non-rectilinear profile viewed in a longitudinal vertical plane. Two longitudinally elongate rigid inserts are placed between the flanges at the sides of the web and are covered in respective airtight tubular bags. The spaces between the upper tool and the lower tool on the two opposite longitudinal sides are sealed. The open opposite ends of the tubular bags are also sealed in such a manner that the pressure applied in an autoclave during the step of curing causes the tubular bags to swell and presses them against the two opposite faces of the web and against the flanges of the beam. On completion of curing, the upper forming tool is removed and the inserts are extracted sideways.