RATIER-FIGEAC SAS Patent applications |
Patent application number | Title | Published |
20140133995 | PROPELLER BLADE WITH MODIFIED SPAR STIFFNESS - A propeller blade includes a foam core, a structural layer formed of multiple layers that surrounds at least a portion of the foam core and at least one section of fibers formed separately from the structural layer located between two of the multiple layers. | 05-15-2014 |
20130287586 | PROPELLER BLADE WITH LIGHTWEIGHT INSERT AND BULKHEADS - A propeller blade includes a foam core and a structural layer that surrounds at least a portion of the foam core and includes a face side and a camber side is disclosed. The propeller blade also includes an insert disposed in the foam core in operable contact with the face side and the camber side of the structural layer and one or more bulkheads disposed in the form core and oriented normal to the insert. | 10-31-2013 |
20130287585 | PROPELLER BLADE WITH LIGHTWEIGHT INSERT - A propeller blade includes a foam core and a structural layer that surrounds at least a portion of the foam core and includes a face side and a camber side is disclosed. The propeller blade also includes a bulkhead disposed in the foam core in operable contact with the face side and the camber side of the structural layer and extending in a chord wise direction of the propeller blade. | 10-31-2013 |
20130287584 | PROPELLER BLADE WITH MODIFIED SPAR LAYUP - According to one embodiment, a propeller blade includes a foam core and a structural layer formed of multiple layers that surrounds at least a portion of the foam core. The structural layer includes a mid-thickness location defined between the foam core and an outer edge of the structural layer and the multiple layers include at least one unidirectional layer and at least one biased layer disposed asymmetrically about the mid-thickness location. | 10-31-2013 |