US4463465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire blocking systems for aircraft seat cushions
Assignee: United States, NATIONAL AERONAUTICS AND SPACE ADMNISTRATION, Administrator of
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Filing: 1982-12-23
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Granted: 1984-08-07
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Expires: 2002-12-23
Abstract
Abstract A configuration and method for reducing the flammability of bodies of organic materials that thermally decompose to give flammable gases is disclosed to comprise covering the body with a flexible matrix that catalytically cracks the flammable gases to less flammable species. Optionally the matrix is covered with a gas impermeable outer layer. In a preferred embodiment, the invention takes the form of an aircraft seat in which the body is a poly(urethane) seat cushion, the matrix is an aramid fabric or felt and the outer layer is an aluminum film.
Inventors
- 👤 John A. Parker
- 👤 Demetrius A. Kourtides
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:59
CPC Classifications
B; B64; B64D; B64D11/00; B64D11/06; B64D11/0647; A; A47; A47C; A47C31/00; A47C31/001; A47C7/00; A47C7/02; A47C7/18; Y; Y10; Y10S; Y10S297/00; Y10S297/05; Y10S428/00; Y10S428/92; Y10S428/921; Y10S5/00; Y10S5/954; Y10T; Y10T428/00; Y10T428/23; Y10T428/233; Y10T428/239; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/24999; Y10T428/31504; Y10T428/31551; Y10T428/31562; Y10T442/00; Y10T442/30; Y10T442/3325; Y10T442/3333; Y10T442/50; Y10T442/59
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
48 words
A composite comprising a body of a material characterized as producing combustible organic vapors when exposed to a temperature above 250° C., covered by a flexible matrix of a material that will, at said temperature, catalyze vapor phase cracking of said combustible organic vapors to less combustible species.
Claim 2
Dependent Claim
48 words
A composite comprising a body of a material characterized as producing combustible organic vapors when exposed to a temperature above 250° C., covered by a flexible matrix of a material that will, at said temperature, catalyze vapor phase cracking of said combustible organic vapors to less combustible species.
Claim 3
Dependent Claim
19 words
The composite of claim 1 wherein the material characterized as producing combustible organic vapors is an organic polymeric foam.
Claim 4
Dependent Claim
32 words
The composite of claim 2 wherein the flexible matrix is a fabric or felt comprising a member selected from the group consisting of aramide poly(amide), heat stabilized poly(acrylonitrile) and carbon loaded fabric.
Claim 5
Dependent Claim
13 words
The composite of claim 3 wherein said organic polymeric foam is poly(urethane) foam.
Claim 6
Dependent Claim
13 words
The composite of claim 4 wherein said poly(urethane foam) is not fire resistant.
Claim 7
Dependent Claim
13 words
The composite of claim 5 wherein the flexible matrix is an aramid poly(amide).
Claim 8
Dependent Claim
24 words
The composite of claim 5 wherein the flexible matrix is a fabric or felt comprising poly(p-phenylene terephthalamide), meta-substituted polyaramide, and amorphous crosslinked phenolic polymer.
Claim 9
Dependent Claim
25 words
The composite of claim 1 additionally comprising an outer layer of a second material said second material being substantially impermeable by said combustible organic vapors.
Claim 10
Dependent Claim
25 words
The composite of claim 2 additionally comprising an outer layer of a second material said second material being substantially impermeable by said combustible organic vapors.
Claim 11
Dependent Claim
25 words
The composite of claim 3 additionally comprising an outer layer of a second material said second material being substantially impermeable by said combustible organic vapors.
Claim 12
Dependent Claim
25 words
The composite of claim 4 additionally comprising an outer layer of a second material said second material being substantially impermeable by said combustible organic vapors.
Claim 13
Dependent Claim
13 words
The composite of claim 11 wherein the outer layer is an aluminum film.
Claim 14
Dependent Claim
25 words
The composite of claim 5 additionally comprising an outer layer of a second material said second material being substantially impermeable by said combustible organic vapors.
Claim 15
Dependent Claim
13 words
The composite of claim 13 wherein the outer layer is an aluminum film.
Claim 16
Dependent Claim
25 words
The composite of claim 6 additionally comprising an outer layer of a second material said second material being substantially impermeable by said combustible organic vapors.
Claim 17
Dependent Claim
13 words
The composite of claim 15 wherein the outer layer is an aluminum film.
Claim 18
Dependent Claim
25 words
The composite of claim 7 additionally comprising an outer layer of a second material said second material being substantially impermeable by said combustible organic vapors.
Claim 19
Dependent Claim
13 words
The composite of claim 17 wherein the outer layer is an aluminum film.
Claim 20
Dependent Claim
53 words
A fire resistant cushion comprising an inner core of foamed organic polymer characterized as producing combustible organic vapors when exposed to a temperature above 250° C. covered by a flexible matrix of a material that will, at said temperature, catalyze the vapor phase cracking of said combustible organic vapors to less combustible species.
Claim 21
Dependent Claim
53 words
A fire resistant cushion comprising an inner core of foamed organic polymer characterized as producing combustible organic vapors when exposed to a temperature above 250° C. covered by a flexible matrix of a material that will, at said temperature, catalyze the vapor phase cracking of said combustible organic vapors to less combustible species.
Claim 22
Dependent Claim
50 words
The fire resistant cushion of claim 19 wherein said foamed organic polymer is non-fire retarded poly(urethane) foam, said flexible matrix is a fabric or felt comprising aramid poly(amide) and wherein cushion comprises an outer layer of a second material, said second material being substantially impermeable to said combustible organic vapors.
Claim 23
Dependent Claim
15 words
The fire resistant cushion of claim 20 wherein said outer layer is an aluminum film.
Claim 24
Dependent Claim
53 words
In a poly(urethane) aircraft seat cushion, the improvement comprising covering the cushion with a flexible matrix of a material that will catalyze the vapor phase cracking of poly(urethane) thermal decomposition products and covering the matrix with an outer covering of aluminum film thereby rendering the cushion flame resistant without an increase in weight.
Claim 25
Dependent Claim
53 words
In a poly(urethane) aircraft seat cushion, the improvement comprising covering the cushion with a flexible matrix of a material that will catalyze the vapor phase cracking of poly(urethane) thermal decomposition products and covering the matrix with an outer covering of aluminum film thereby rendering the cushion flame resistant without an increase in weight.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |