US4291851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal insulation for aircraft fuselage
Assignee: Boeing Co
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Filing: 1980-03-24
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Granted: 1981-09-29
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Expires: 2000-03-24
Abstract
Abstract Thermal insulating apparatus for an aircraft fuselage of the type utilizing a sandwich panel construction. A foam insulation panel is provided which includes a plurality of standoffs for contacting the inwardly-facing skin of the sandwich panel. The standoffs may be arranged in a grid pattern, molded integrally with the rest of the panel, and bonded to the skin of the sandwich panel. The insulation panel may be used with or without a trim panel between it and the fuselage compartment, and in either case a sheet of metal foil may be attached to the inside face of the insulation panel. The foam may be of the self-skinning type so as to resist penetration of moisture into the foam panel and help direct condensate away from the fuselage compartment. This is a division of application Ser. No. 970,773 filed Dec. 18, 1978, now Pat. No. 4,235,398.
Inventors
- 👤 William R. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:55
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/18; B32B3/00; B32B3/10; B32B3/12; B64; B64C; B64C1/00; B64C1/06; B64C1/066; B64C1/067; B64C1/40; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/7675; B32B2307/00; B32B2307/30; B32B2307/304; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2605/00; B32B2605/18; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24512; Y10T428/24628; Y10T428/24661; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249988; Y10T428/249989
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
76 words
An insulation panel for an aircraft fuselage having a wall portion including a continuous and substantially uninterrupted inwardly-facing surface; said insulation panel comprising: a self-supporting foam panel of insulating material including an inside face, an outside face, and a plurality of standoffs projecting outwardly from said outside face for contacting said continuous and substantially uninterrupted inwardly-facing surface of said wall portion of said fuselage and providing a space between said insulation panel and said wall portion.
Claim 2
Dependent Claim
76 words
An insulation panel for an aircraft fuselage having a wall portion including a continuous and substantially uninterrupted inwardly-facing surface; said insulation panel comprising: a self-supporting foam panel of insulating material including an inside face, an outside face, and a plurality of standoffs projecting outwardly from said outside face for contacting said continuous and substantially uninterrupted inwardly-facing surface of said wall portion of said fuselage and providing a space between said insulation panel and said wall portion.
Claim 3
Dependent Claim
20 words
An insulation panel as in claim 1 including a sheet of metal foil attached to and covering said inside face.
Claim 4
Dependent Claim
29 words
An insulation panel as in claim 1 wherein each said standoff includes a surface portion adapted for bonding to said inwardly-facing surface of said wall portion of said fuselage.
Claim 5
Dependent Claim
23 words
An insulation panel as in claim 1 wherein said insulation panel including said standoffs is an integral part molded from a self-skinning foam.
Claim 6
Dependent Claim
65 words
An insulation panel as in claim 1 wherein each said standoff includes a liquid impervious side surface portion and said outside face includes a liquid impervious outside surface, said side surfaces and said outside surface together providing a drip shield for cooperation with said continuous and interrupted inwardly-facing surface of said wall portion of said fuselage to define a liquid-collection chamber in said aircraft fuselage.
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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) | 1984-09-28 | 1985-03-30 | 1985-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-28 | 1989-03-30 | 1989-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-28 | 1993-03-30 | 1993-09-29 | $7700.00 | Window Closed / Lapsed |