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US 5,283,918 AGranted
Vehicle seat cushion
AssigneeC. A. Greiner & Sohne GmbH
InventorsRudolf Weingartner, Johann Moseneder
Life of this patent
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Abstract
A 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 a lower supporting part of foamed plastic having the spring core embedded therein and a sitting part, also of foamed plastic, preferably of a different density.
Claims22
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.
4 more elements
Dependencies are inferred from the claim text.