Beds – Mattress – Nonplanar top surface
Reexamination Certificate
1999-07-28
2001-03-13
Knight, Anthony (Department: 3628)
Beds
Mattress
Nonplanar top surface
C005S716000, C005S944000, C005S740000
Reexamination Certificate
active
06199234
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention deals with a mattress structure designed to provide a comfortable sleeping surface for infants and young children.
The ability of an infant or young child to sleep comfortably and for relatively long periods is of importance to its own health and well being as well as to that of its care givers. The mattress on which the infant sleeps in a bed or crib may contribute to the infants comfort and thus, to some extent, promote sleep. Most conventional infant mattresses, are generally either innerspring or foam block structures contained within an outer shell or ticking that is generally made of a liquid resistant material such as a vinyl fabric. Such conventional mattress structures, which employ relatively stiff inner springs and high density foams, although resilient when slept on by adults and large children provide an essentially flat surface that is relatively hard and unyielding under the weight of a recumbent infant or small child.
There is a need for a mattress structure that is more suitable to the comfort of the infant or small child. Such a mattress should provide a degree of resilience and bounce, yet yield to some degree under the weight of a recumbent infant or small child to provide a sensation of softness. At the same time the mattress should not be so soft and yielding as to create a suffocation hazard. In addition, it is desirable that the mattress surface provide a degree of air flow at the points of contact with the recumbent infant or child in order to allow evaporation of perspiration. Such a mattress should also be economical to make and easily manufactured.
BRIEF DESCRIPTION OF THE INVENTION
The present invention is directed to meeting the foregoing needs by providing a mattress comprised of a combination of a base layer comprised of a block of relatively firm plastic foam having two major surfaces that are substantially flat and a cover layer, that covers at least one major surface of the base layer, comprised of relatively soft, resilient plastic foam having at least one convoluted surface, with the combination of base layer and cover layer contained within a mattress ticking so that the convoluted foam surface is in contact with a major inner surface of the ticking and is compressed by the ticking. The outer or sleeping surface of the mattress ticking having an inner surface that is in direct contact with the compressed convoluted foam surface exhibits a multiplicity of bumps, depressions and ridges. The mattress of the present invention provides a relatively soft resilient surface under the weight of a recumbent infant or small child and also provides a degree of air flow, by means of the bumps, depressions and ridges at the points of contact with the infant or child. The mattress of the present invention thereby provides a comfortable sleeping surface for the infant or small child.
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Srour Joseph
Srour Mark
Arnoff Marvin S.
Knight Anthony
Santos Robert G.
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