Cushion having flexible outer membrane and multi-density resilient foam member therein
First Claim
1. A cushion comprising:
- a flexible membrane;
and a foam article bonded to said flexible membrane,said foam article comprising a plurality of foam regions of different relative hardness,said foam regions being bonded together at any common boundary therebetween by materials of which said foam regions are made,each of said foam regions being bonded at any common boundary between that foam region and said flexible membrane by the material of which said foam region is made.
5 Assignments
0 Petitions
Accused Products
Abstract
A cushion for motor vehicle seating or furniture comprises a flexible outer membrane or cover and a multi-hardness foam member, comprising foam regions of different foam hardness. The foam regions are bonded together along common boundaries and are bonded to the membrane at any boundary therewith, such bonding ocurring during formulation of the foam member and employing the materials of which the foam member is made. The method generally comprises the steps of: (a) providing a flexible membrane having a cavity therein; (b) adding to the cavity in a predetermined sequence a plurality of formulations in liquid form which, when cured, provide a foam article having foam regions of different hardness; (c) and allowing the formulations to cure, bond together at any common boundary between formulations, and bond together at any common boundary between a formulation and the membrane. The method may include the further step of changing to the orientation of the membrane cavity to thereby affect the flow of one or more formulations and determine the shape of the foam region subsequently formed thereby.
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Citations
9 Claims
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1. A cushion comprising:
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a flexible membrane; and a foam article bonded to said flexible membrane, said foam article comprising a plurality of foam regions of different relative hardness, said foam regions being bonded together at any common boundary therebetween by materials of which said foam regions are made, each of said foam regions being bonded at any common boundary between that foam region and said flexible membrane by the material of which said foam region is made. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification