Beds – Support for users body or part thereof – Ventilated or permitting substantial air or liquid passage
Reexamination Certificate
2005-05-13
2008-08-05
Grosz, Alexander (Department: 3673)
Beds
Support for users body or part thereof
Ventilated or permitting substantial air or liquid passage
C005S653000, C297S452150, C297S452560
Reexamination Certificate
active
07406733
ABSTRACT:
An elastomeric fabric load bearing surface having a non-linear force/deflection profile. In one embodiment, the load bearing surface includes multiple layers, at least one of which is an elastomeric fabric. The various layers cooperate with one another to define a non-linear force/deflection profile. In one embodiment, the load bearing surface includes an upper layer of elastomeric fabric and a lower layer of elastomeric fabric, and the two layers are stretched in different directions. In a second aspect, the load bearing surface includes at least one layer of elastomeric fabric that follows a non-linear pattern. In one embodiment of this second aspect, the fabric defines a body-supporting surface and includes a plurality of undulations away from the body-supporting surface.
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Coffield Timothy P.
Sommerfeld Daniel S.
Ward Joseph D.
Grosz Alexander
Illinois Tool Works Inc.
Warner & Norcross & Judd LLP
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