US4898426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Passenger seat for an airplane
Assignee: Safran Cabin Germany GmbH
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Filing: 1989-03-10
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Granted: 1990-02-06
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Expires: 2009-03-10
Abstract
Abstract To make the passenger seat for the airplane as light as possible while satisfying safety requirements, some or all the essential components are made with a sandwich-like structure, especially from sandwich panels. These sandwich panels can be made from a plurality of covering layers with a light but strong supporting core (e.g. with a honeycomb structure) interposed between pairs of covering layers.
Inventors
- 👤 Thilo Schulz
- 👤 Karl-Heinz Schmitz
- 👤 Thomas Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:58
CPC Classifications
B; B64; B64D; B64D11/00; B64D11/06; B64D11/0647; B64D11/0649; Y; Y02; Y02T; Y02T50/00; Y02T50/40; Y10; Y10S; Y10S108/00; Y10S108/901; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/103
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
88 words
A passenger seat for an airplane, comprising: a seat shell adapted to receive a seat cushion; a pedestal supporting said seat shell; a pair of supporting pieces flanking said seat shell; respective armrests pivotally connected to said supporting pieces; and a backrest connected to said seat shell and adapted to receive a backrest cushion, said seat shell, said pedestal, said supporting pieces, said armrests and said backrest each being constituted of at least two sandwich panels bonded together and each having a honeycomb core flanked by cover layers.
Claim 2
Dependent Claim
88 words
A passenger seat for an airplane, comprising: a seat shell adapted to receive a seat cushion; a pedestal supporting said seat shell; a pair of supporting pieces flanking said seat shell; respective armrests pivotally connected to said supporting pieces; and a backrest connected to said seat shell and adapted to receive a backrest cushion, said seat shell, said pedestal, said supporting pieces, said armrests and said backrest each being constituted of at least two sandwich panels bonded together and each having a honeycomb core flanked by cover layers.
Claim 3
Dependent Claim
33 words
The passenger seat defined in claim 1 wherein the two sandwich panels for at least one of the seat shell, pedestal, armrests, supporting pieces and backrest are bonded to a third sandwich panel.
Claim 4
Dependent Claim
22 words
The passenger seat defined in claim 1 wherein said sandwich panels are assembled from honeycomb cores and cover layers of different thicknesses.
Claim 5
Dependent Claim
19 words
The passenger seat defined in claim 1, further comprising edge channels covering edges of the bonded together sandwich panels.
Claim 6
Dependent Claim
30 words
The passenger seat defined in claim 4 wherein at last one of the sandwich panels of the seat shell is formed with slits and bent to provide a seating surface.
Claim 7
Independent Claim
85 words
A method of making a passenger seat for an airplane which comprises the steps of: gluing at least two sandwich panels each comprising a honeycomb core bonded to a pair of cover layers and forming from the glued-together sandwich panels a pedestal, armrests, a backrest and a pair of support members of a passenger seat; and slitting at least one of the sandwich panels of a pair of glued-together sandwich panels and bonding same to a configuration of a seat shell mounted on said pedestal.
Claim 8
Independent Claim
85 words
A method of making a passenger seat for an airplane which comprises the steps of: gluing at least two sandwich panels each comprising a honeycomb core bonded to a pair of cover layers and forming from the glued-together sandwich panels a pedestal, armrests, a backrest and a pair of support members of a passenger seat; and slitting at least one of the sandwich panels of a pair of glued-together sandwich panels and bonding same to a configuration of a seat shell mounted on said pedestal.
References Cited (Backward Citations)
US3091497A
Cited
US3468582A
Cited
US3929536A
Cited
DE2831891A1
Cited
US4296967A
Cited
US4526421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |