Cushion having flexible outer membrane and multi-density resilie

Details Cushion having flexible outer membrane and multi-density resilie Cushion having flexible outer membrane and multi-density resilie

1987-04-22

1988-07-05

Van Balen, William J.

Stock material or miscellaneous articles

Sheet including cover or casing

Foamed or expanded material encased

5481, 297455, 297DIG1, 4283099, 4283166, 4283175, A47C 500, A47C 2714, B32B 514, B32B 520

Patent

active

047554118

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.

REFERENCES:
patent: 3429085 (1969-02-01), Stillman, Jr.
patent: 3833259 (1974-09-01), Pershing
patent: 4190697 (1980-02-01), Ahrens
patent: 4379856 (1983-04-01), Samaritter et al.
patent: 4405681 (1983-09-01), McEvoy
patent: 4476183 (1984-10-01), Holtrop et al.

Affiliated with

Also associated with

Rating

Cushion having flexible outer membrane and multi-density resilie does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cushion having flexible outer membrane and multi-density resilie, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cushion having flexible outer membrane and multi-density resilie will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2331662