Cushion for an aircraft seat

• US 20060103224A1
• Filed: 12/11/2003
• Published: 05/18/2006
• Est. Priority Date: 12/11/2002
• Status: Abandoned Application

• Current Assignee: Kay-Metzeler Ltd. (Vita Cayman Limited)
• Original Assignee: Kay-Metzeler Ltd. (Vita Cayman Limited)
• Inventors: Wood, Kevin, Baumforth, Ron
• Application Number:
  US10/537,967
• Publication Number:
  US 20060103224A1
• Time in Patent Office: Days
• US Class Current: 297/452.210
• CPC Class Codes: A47C 7/18 having foamed material included in cushioning part foamed material mattresses A47C27/14

Abstract

A cushion (101) for use in an aircraft seat, comprises a foam structure having a first region (102) of a low-density flame retardant foam, a second region (103) of a flame retardant polyurethane foam and a sealing barrier (104) disposed at the interface between the first and second regions.

Claims

1. A cushion suitable for use in an aircraft seat, said cushion comprising a foam structure having a first region of a low-density flame retardant foam, a second region of a flame retardant polyurethane foam and a sealing barrier disposed at the interface between said first and second region, wherein said first region comprises foam having a density within the range from 8 to 12 kg/m³.

2. A cushion as claimed in claim 1, wherein the second region encloses, at least in part, a core comprising the first region.

3. A cushion as claimed in claim 1, wherein the sealing barrier comprises any of polyethylene, polyurethane or polyvinylchloride.

4. A cushion is claimed in claim 1, wherein the ratio of the volume of the first region to the second region is in the range from 20:

80 to 80;

20 (volume to volume).

5. A cushion as claimed in claim 1, wherein the ratio of the volume of the first region to the second region is substantially 50:

50 (volume to volume).

6. A cushion as claimed in claim 1, wherein the first region comprises foam having a density within the range of 5 to 15 kg/m³.

8. A cushion as claimed in claim 1, wherein the first region comprises Melamine foam.

9. A cushion as claimed in claim 1, wherein the second region comprises a foam having a density within the range from 30 to 70 kg/m³.

10. A cushion as claimed in claim 1, wherein the second region comprises a foam having a density within the range from 40 to 65 kg/m³.

11. A cushion as claimed in claim 1, wherein the second region comprises at least one flame retardant additive.

13. A cushion as claimed in claim 1, wherein a fire blocking layer is provided over at least a part of the second region.

14. An aircraft seat comprising a cushion as defined in claim 1.

15. A method of manufacturing a cushion suitable for use in an aircraft seat as claimed in claim 1, said method comprising the steps of:

(i) fabricating the low-density flame retardant foam into the desired configuration;

(ii) coating the surface of said low-density flame retardant foam with a sealant barrier; and

(iii) applying the flame retardant polyurethane foam to the sealing barrier.

7. (canceled)

12. (canceled)