Aircraft seat cushion

• US 4,031,579 A
• Filed: 12/19/1975
• Issued: 06/28/1977
• Est. Priority Date: 12/19/1975
• Status: Expired due to Term

• Current Assignee: United States Of America As Represented By The Secretary Of The Air Force
• Original Assignee: United States Of America As Represented By The Secretary Of The Air Force
• Inventors: Larned, Thomas A.
• Primary Examiner(s): Mitchell, James C.
• Application Number:
  US05/642,525
• Time in Patent Office: 557 Days
• Field of Search: 5/345 R, 5/347, 5/355, 5/361 R, 5/361 B, 297/216, 297/453, 297/455, 297/456, 297/DIG. 1, 297/DIG. 5, 297/DIG. 2
• US Class Current: 5/652.1
• CPC Class Codes: A47C 7/746 without active means, e.g. with openings or heat conductors
• CPC Class Codes: B64D 11/0619 with energy absorbing means specially adapted for mitigating impact loads for passenger seats, e.g. at a crash
• CPC Class Codes: B64D 11/0647 Seats characterised by special upholstery or cushioning features
• CPC Class Codes: Y10S 297/01 Foam
• CPC Class Codes: Y10S 297/05 Fireproof
• CPC Class Codes: Y10S 5/948 Body support with unique, specific filler material
• CPC Class Codes: Y10S 5/954 Fireproof

Abstract

An aircraft crew seat cushion having a top cover of high porosity mositure absorbent material over a ventilation layer with a cushioning layer beneath the ventilation layer. The cushioning layer is secured to a shock absorbent layer with an adhesive. The back and sides of the cushion are made of a flame resistant material and together with the top form a cover for the ventilation layer, the cushioning layer and shock absorbent layer.

Claims

1. A cushion adapted for use in an aircraft seat used by crewmen, comprising:

a close cell plastic layer of shock absorbent material;

an elastic flow cushioning layer positioned over the shock absorbent layer;

a flame resistant cover surrounding the shock absorbent layer and the cushioning layer;

a ventilation layer positioned between the cushioning layer and the cover;

the side of said cover adjacent the ventilation material having high porosity and being moisture absorbent.

2. The device as recited in claim 1 wherein the cushioning layer is secured to the shock absorbent layer with an adhesive.