# US 2023/0406475 A1 · Thermoplastic cover panel for a structure in an interior space of an aircraft

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- Number: US 2023/0406475 A1
- Document ID: US20230406475A1
- Status: Published application
- Kind: A1
- Application number: 18/336,914
- Filed: 2023-06-16
- Published: 2023-12-21
- Earliest claimed: 2022-06-20
- Assignees: Airbus Operations GmbH
- Applicants: Airbus Operations GmbH
- Inventors: Claus-Peter GROSS
- Web page: https://patentgrep.com/patent/US20230406475A1

## CPC

- B64C 1/066: {Interior liners}
- B64C 1/403: {Arrangement of fasteners specially adapted therefor, e.g. of clips}
- B64C 2001/0072: {from composite materials}
- B64C: AEROPLANES; HELICOPTERS

## Abstract

A panel for covering a part of a structure in an interior space of an aircraft is disclosed including a main panel section having an interior side and an exterior side, and at least one attachment device coupled with the exterior side. The main panel section is exclusively made from a single thermoplastic material, and the at least one attachment device is adapted for attaching the panel to the respective interior structure.

## Claims

### Claim 1

A cover panel for covering a part of a fuselage structure in an interior space of an aircraft, the cover panel comprising:
a main panel section having an interior side and an exterior side, and
at least one attachment device coupled with the exterior side,
wherein the main panel section is exclusively made from a single thermoplastic material, and
wherein the at least one attachment device is adapted for attaching the cover panel to the respective fuselage structure.

### Claim 2 (depends on 1)

The cover panel of claim 1, wherein the cover panel is a sidewall panel as a lateral delimitation of a cabin.

### Claim 3 (depends on 1)

The cover panel of claim 1, wherein the main panel section is made from a substantially flat thermoplastic workpiece, and
wherein at least one stiffening element made from the same thermoplastic material is welded to the exterior side to enhance the dimensional stability of the cover panel.

### Claim 4 (depends on 3)

The cover panel of claim 3, wherein the substantially flat thermoplastic workpiece is thermo-bent to be curved before or after attaching the at least one stiffening element.

### Claim 5 (depends on 1)

The cover panel of claim 1, further comprising a window cutout and a window funnel attached to the exterior side.

### Claim 6 (depends on 5)

The cover panel of claim 5, wherein the window funnel is made from the same thermoplastic material as the main panel section.

### Claim 7 (depends on 1)

The cover panel of claim 1, further comprising a cover layer on the interior side.

### Claim 8 (depends on 7)

The cover panel of claim 7, wherein the cover layer is completely removable prior to recycling the main panel section.

### Claim 9 (depends on 1)

The cover panel of claim 1, further comprising a plurality of fasteners for attaching an insulation packet.

### Claim 10 (depends on 9)

The cover panel of claim 9, wherein the plurality of fasteners is made from the same thermoplastic material as the main panel section.

### Claim 11 (depends on 1)

The cover panel of claim 1, wherein the attachment device comprising a plurality of brackets for fastening the panel to the fuselage structure.

### Claim 12 (depends on 11)

The cover panel of claim 11, wherein the brackets for fastening the panel to the fuselage structure are made from the same thermoplastic material as the main panel section.

### Claim 13 (depends on 1)

The cover panel of claim 1, further comprising at least one sealing profile for engaging opposed edges of adjacent cover panels to seal a gap between the adjacent cover panels and to hold the edges relative to each other.

### Claim 14 (depends on 1)

The cover panel of claim 1, wherein all additional components added to the main panel section are:
i) made from the same thermoplastic material; or
ii) mechanically completely removably attached to the main panel section when made from other materials than the thermoplastic material of the main panel section.

### Claim 15

A method for producing a cover panel for covering a part of a fuselage structure in an interior space of an aircraft, comprising:
providing a main panel section as a flat workpiece exclusively made from a single thermoplastic material having an interior side and an exterior side, and
coupling at least one attachment device with the exterior side, wherein the at least one attachment device configured to attach the cover panel to the respective fuselage structure.

### Claim 16 (depends on 15)

The method of claim 15, further comprising welding at least one stiffening element made from the same thermoplastic material as the main panel section to the exterior side to enhance the dimensional stability of the cover panel.

### Claim 17 (depends on 15)

The method of claim 15, further comprising thermo-bending the main panel section to be curved before or after attaching the at least one stiffening element.

### Claim 18 (depends on 1)

An aircraft, comprising a fuselage having a fuselage structure and an interior space created therein, wherein at least one cover panel of claim 1 is arranged in the interior space to cover at least a part of the fuselage structure.

### Claim 19 (depends on 18)

The aircraft of claim 18, wherein the cover panel is a sidewall panel, which spans over a plurality of windows arranged in the fuselage of the aircraft.
