A - Human Necessities – 47 – C
Patent
A - Human Necessities
47
C
360/38
A47C 7/18 (2006.01) B29D 99/00 (2010.01) B29C 44/04 (2006.01) B32B 5/20 (2006.01)
Patent
CA 1306554
CUSHION HAVING FLEXIBLE OUTER MEMBRANE AND MULTI-DENSITY RESILIENT FOAM MEMBER therein and method for making same Abstract of the Disclosure 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 occurring 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 for- mulations, 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.
564673
Van Dine Michael
Wing William W.
Milsco Manufacturing Company
Smart & Biggar
LandOfFree
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