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US 11,376,811 B2Granted
Impact and knife cut resistant pre-impregnated woven fabric for aircraft heated floor panels
AssigneeGoodrich Corporation
InventorsDaniel Waina, Jin Hu, Casey Slane, Nathaniel Ching, Galdemir Cezar Botura
Life of this patent
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Abstract
A heated floor panel assembly for aircraft includes an impact layer made from a 2-D or 3-D woven high temperature thermoplastic fiber matrix impregnated with a resin. The impact layer can further include woven metallic fibers. The assembly also includes a stack of structural layers, a heating layer, and a core layer for absorbing shear stress.
Claims17
A floor panel assembly having a bottom surface and a top surface, the floor panel assembly comprising:
- a first stack of structural layers adjacent the bottom surface;
- a core layer, adjacent the first stack of structural layers, that absorbs shear stress;
- a second stack of structural layers between the core layer and the top surface;
- a heating layer between the core layer and the top surface;
- and
- a woven impact layer between the heating layer and the top surface, the woven impact layer comprising:
- a woven thermoplastic fiber matrix, wherein the thermoplastic fiber matrix has a melting point between melting points between 150 and 400 degrees Celsius;
- and
- a resin infiltrating the woven fiber matrix;
- wherein the floor panel assembly further comprises:
- a second impact layer between the first stack of structural layers and the core layer;
- and
- a third stack of structural layers between the woven impact layer and the second impact layer.
10 more elements
A method of making a floor panel assembly having a bottom surface and a top surface, the method comprising:
- aligning a woven impact layer, a heating layer, a core layer, and one or more structural facing layers, wherein the woven impact layer comprises a woven thermoplastic fiber matrix, wherein the thermoplastic fiber matrix has a melting point between melting points between 150 and 400 degrees Celsius and a resin infiltrates the woven fiber matrix;
- and
- bonding the woven impact layer, the heating layer, the core layer, and the one or more structural layers to each other to form the floor panel assembly comprising;
- a first stack of structural layers adjacent the bottom surface;
- the core layer, adjacent the first stack of structural layers, that absorbs shear stress;
- a second stack of structural layers between the core layer and the top surface;
- the heating layer between the core layer and the top surface;
- the woven impact layer between the heating layer and the top surface;
- a second impact layer between the first stack of structural layers and the core layer;
- and
- a third stack of structural layers between the woven impact layer and the second impact layer.
8 more elements
Dependencies are inferred from the claim text.