Source: http://www.google.com/patents/US5283918?dq=5,870,513
Timestamp: 2016-06-26 16:40:08
Document Index: 215055830

Matched Legal Cases: ['art 8', 'art 7', 'art 8', 'art 7', 'art 8', 'art 8', 'art 8', 'art 8']

Patent US5283918 - Vehicle seat cushion - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA seat cushion is disclosed, in particular for an aircraft seat, with a supporting body of a foamed plastic with a spring core embedded therein, and a flameproofing layer of flame-retardant plastics foam, to which a covering material is secured, preferably detachably. The supporting body is formed from...http://www.google.com/patents/US5283918?utm_source=gb-gplus-sharePatent US5283918 - Vehicle seat cushionAdvanced Patent SearchPublication numberUS5283918 APublication typeGrantApplication numberUS 07/870,959Publication dateFeb 8, 1994Filing dateApr 20, 1992Priority dateApr 22, 1991Fee statusPaidAlso published asCA2066791A1, CN1070094A, DE4208600A1, DE4209468A1, DE9203622U1, US5477572, US5632053Publication number07870959, 870959, US 5283918 A, US 5283918A, US-A-5283918, US5283918 A, US5283918AInventorsRudolf Weingartner, Johann MosenederOriginal AssigneeC. A. Greiner & SohneExport CitationBiBTeX, EndNote, RefManPatent Citations (23), Referenced by (38), Classifications (42), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetVehicle seat cushion
US 5283918 AAbstract
1. In combination with an aircraft seat, a seat cushion comprising:(a) supporting body of foamed plastic material, the supporting body comprising(1) a major lower supporting part having lateral, front and rear edges, and a planar upper surface and a lower surface extending therebetween, and (2) a minor upper sitting part having an upper surface remote from the supporting part and a planar lower surface in contact with substantially the entire upper surface of the support part, the upper and lower surfaces of the sitting part extending between lateral edges of the sitting part, (b) a spring core formed of wires, the spring core being embedded in, and surrounded by, the foamed plastic material of the lower supporting part, (c) detachable connecting means for attaching the supporting and sitting parts to each other, (d) a flameproofing layer of a flame-retardant foamed plastic material covering at least the upper surface of the sitting part and overlapping the supporting part along the edges thereof, and (e) an outer covering material attached to the flameproofing layer. 2. The seat cushion of claim 1, wherein the covering material is detachably attached to the flameproofing layer.
It is advantageous if the fibres or threads of the intermediate layer comprise carbon, metal, aramid fibres such as Kevlar�, polytetrafluoroethylene (PTFE) or other high-temperature resistant plastics, because with these materials in the case of fire, a barrier layer is created, partially through a carbonisation but also as a whole through the inherent properties of these materials.
The sitting part 8 is formed from a foamed plastic 34 and tapered so as to become narrower from the end edge 10 in the direction of the end edge 15. Advantageously but not necessarily, the foamed plastic of the sitting part has a lower density than that of the supporting part 7. The sitting part 8 is enveloped by a frameproofing layer 36 on an upper side 35 and in the direction of the supporting part 7 projecting beyond the bearing face 27 of the sitting part 8. The sitting part 8 may also be provided with an intermediate layer 37, which is arranged between a flameproofing layer 36, formed from a flame-retardant, open-celled foarged plastic 38, and the foamed plastic 34 of sitting part 8. This immediate layer 37 may be formed, like the intermediate layer 23, from high-strength fibres or threads in the manner of a knitted fabric, net, lattice or the like, which may consist of metal, carbon, plastics, ceramics or the like or of any desired combinations thereof and additionally or at the same time may also be resistant to high temperatures. If the intermediate layer 37 is arranged, it is preferably formed by fibres or threads of carbon, metal, polyester, aramid fibres such as Kevlar�, ceramics, polytetrafluoroethylene such as Teflon� or other plastics resistant to high-temperatures, which is arranged on the surface 39, facing the foamed plastic 34 of the sitting part 8, of the foamed plastic 38 forming the flameproofing layer 36, and preferably is stuck thereto. The flameproofing layer 36 formed by the plastics foam 38 and intermediate layer 37 is connected with a connecting face 40, facing the upper side 35, of the foamed plastic 34. It may be stuck thereto or is foamed thereon or on a fluid-tight barrier film which is connected with the flameproofing layer 36.
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GREINER &amp; S�HNE GESELLSCHAFT M.B.H.Vehicle seat with a cushion, particularly airplane seatEP0805064A2 *Apr 29, 1997Nov 5, 1997Siebolt HettingaSeat cushion and method of molding a seat unit including the seat cushion* Cited by examinerClassifications U.S. Classification297/452.21, 297/DIG.7, 5/655.7, 297/452.27, 297/DIG.6, 297/452.53, 297/281International ClassificationA47C7/18, B60N2/58, A47C7/34, B64D11/06, A47C27/00, A47C7/26, A47C7/20, D04B21/14, B68G5/02, D04B1/22, B68G7/06, B60N2/24Cooperative ClassificationB64D11/0647, B60N2/242, A47C27/00, A47C7/20, Y10S297/05, Y10S5/922, Y10S428/902, Y10S428/92, Y10S297/06, Y10S297/07, A47C7/26, Y02T50/46, D10B2505/08, B64D11/06, D04B1/22, D04B21/14European ClassificationA47C27/00, B64D11/06, D04B1/22, A47C7/20, D04B21/14, A47C7/26, B60N2/24BLegal EventsDateCodeEventDescriptionApr 20, 1992ASAssignmentOwner name: C.A. GREINER & SOHNE GESELLSCHAFT M.B.H., AUSTRIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:WEINGARTNER, RUDOLF;MOSENEDER, JOHANN;REEL/FRAME:006097/0649Effective date: 19920414Jul 22, 1997FPAYFee paymentYear of fee payment: 4Aug 6, 2001FPAYFee paymentYear of fee payment: 8Aug 3, 2005FPAYFee paymentYear of fee payment: 12RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services